Question: 1 (ID:459)

ID: 459

Which of the following statements are true when applied to a Registry pattern? (choose two)

A) It uses static methods B) Only one instance of the class can exist C) It implements ArrayAccess D) It is designed to store values of various types

Question: 2 (ID:150)

ID: 150

Which function escapes all of the shell metacharacters and control operators within a string?

escapeshellarg()

mysql_real_escape_string()

mysql_escape_string()

escapeshellcmd()

Question: 3 (ID:69)

ID: 69

Consider the following PHP script:

                        $a = [
    '1' => "php",
    "Hypertext",
    "Preprocessor",
    "widely used" => [
        'general' => 'purpose',
        'scripting' => 'language',
        'that' => 'was',
        'originally' => [
            5 => 'designed',
            9 => 'for',
            'Web development',
            4 => 'purpose'
        ]
    ]
];
//write code here



                    


                    
                        What should you write here to print the value 'Web development'?


                


                A) 
print $a[widely used][originally][3];
                    
                    
                    
                                    

                B) 
print $a['widely used']['originally'][0];
                    
                    
                    
                                    

                C) 
print $a[2][3][3];
                    
                    
                    
                                    

                D) 
print $a['widely used']['originally'][10];


            

        
            
                Question: 4 (ID:145)
                ID: 145

                


                

                    
                        Fill in the blank with the appropriate method. The ____ method automatically calls whenever a user tries to instantiate a nonexistent class.                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  __call                    
                    
                    
                                    

                B)  __load                    
                    
                    
                                    

                C)  __autoload                    
                    
                    
                                    

                D)  # all answer are wrong                    
                    
                    
                                    


            
            

        
            
                Question: 5 (ID:87)
                ID: 87

                


                

                    
                        You want to create an anonymous function in the middle of a script that will return the square of a given number.
Which of the following PHP scripts can you use to accomplish the task?                    

                    


                    

                                                                    

                    

                    


                    
                        Each correct answer represents a complete solution. (Choose two)                    


                
                


                A) 
$foo = create_function("$x", "$x*$x;"); echo $foo(10);
                    
                    
                    
                                    

                B) 
$foo = create_function("\$x", "return \$x*\$x;"); echo $foo(10);
                    
                    
                    
                                    

                C) 
$foo = create_function("$x", "return $x*$x;"); echo $foo(10);
                    
                    
                    
                                    

                D) 
$foo = create_function('$x', 'return $x*$x;'); echo $foo(10);
                    
                    
                    
                                    


            
            

        
            
                Question: 6 (ID:640)
                ID: 640

                


                

                    
                        What is the output of the following?                    

                    


                    

                                                $a = 0b010;         
$b = 0xA;
$c = 2;
print $a + $b + $c;                    


                    


                    


                    
                                            


                

                


                A)  14                    
                    
                    
                                    

                B)  4                    
                    
                    
                                    

                C)  an error if PHP < 5.4                    
                    
                    
                                    

                D)  2                    
                    
                    
                                    


            

            

        
            
                Question: 7 (ID:646)
                ID: 646

                


                

                    
                        Which of the following functions is used to determine if a given stream is blocking or not?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  stream_get_meta_data                    
                    
                    
                                    

                B)  stream_is_blocking                    
                    
                    
                                    

                C)  stream_get_blocking                    
                    
                    
                                    

                D)  stream_get_blocking_mode                    
                    
                    
                                    


            
            

        
            
                Question: 8 (ID:86)
                ID: 86

                


                

                    
                        Which of the following functions will you use to merge one or more arrays?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
array_pad()
                    
                    
                    
                                    

                B) 
array_merge()
                    
                    
                    
                                    

                C) 
array_pop()
                    
                    
                    
                                    

                D) 
array_product()
                    
                    
                    
                                    


            
            

        
            
                Question: 9 (ID:164)
                ID: 164

                


                

                    
                        Which of the following functions is the best choice to retrieve the fingerprint of a string?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
hash()
                    
                    
                    
                                    

                B) 
fingerprint()
                    
                    
                    
                                    

                C) 
md5()
                    
                    
                    
                                    

                D) 
crypt()
                    
                    
                    
                                    


            
            

        
            
                Question: 10 (ID:477)
                ID: 477

                


                

                    
                        Which of the following php configuration directives were deprecated in PHP 5.3 (tick as many as apply)?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  disable_functions                    
                    
                    
                                    

                B)  register_globals                    
                    
                    
                                    

                C)  safe_mode                    
                    
                    
                                    

                D)  register_long_arrays                    
                    
                    
                                    


            
            

        
            
                Question: 11 (ID:220)
                ID: 220

                


                

                    
                        What will be the output of the following code?                    

                    


                    

                                                $s = '13149';
$s[$s[1]] = $s[1]+$s[3];
print_r($s);                    


                    


                    


                    
                                            


                

                


                A)  The script will throw an error message.                    
                    
                    
                                    

                B)  13147                    
                    
                    
                                    

                C)  13179                    
                    
                    
                                    

                D)  13149                    
                    
                    
                                    


            

            

        
            
                Question: 12 (ID:93)
                ID: 93

                


                

                    
                        Which of the following functions can be used to check whether a particular element exists in a given array or not?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
array_keys()
                    
                    
                    
                                    

                B) 
array_value()
                    
                    
                    
                                    

                C) 
array_key_exists()
                    
                    
                    
                                    

                D) 
in_array()
                    
                    
                    
                                    


            
            

        
            
                Question: 13 (ID:503)
                ID: 503

                


                

                    
                        Which of the following statements best describes session fixation?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  An attacker discovers an unsuspecting authenticated user's session ID in order to access the site with the user's elevated access level.                    
                    
                    
                                    

                B)  An attacker embeds malicious JavaScript on a site which causes an unsuspecting authenticated user to transit sensitive information (such as session ID) to a third-party web site.                    
                    
                    
                                    

                C)  An attacker forces an unsuspecting user to use a particular session. Once the user has authenticated the user can access the site with the user's elevated access level.                    
                    
                    
                                    

                D)  An attacker embeds malicious JavaScript on a site which causes an unsuspecting authenticated user to perform a privileged action without their knowledge.                    
                    
                    
                                    


            
            

        
            
                Question: 14 (ID:76)
                ID: 76

                


                

                    
                        Which of the following functions is used to insert a new element in the beginning of an array?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
array_pop()
                    
                    
                    
                                    

                B) 
array_push()
                    
                    
                    
                                    

                C) 
array_unshift()
                    
                    
                    
                                    

                D) 
array_unique()
                    
                    
                    
                                    


            
            

        
            
                Question: 15 (ID:486)
                ID: 486

                


                

                    
                        What does the following code output?                    

                    


                    

                                                $i = function($j) {
   $i = $j + 4;
   return $i++;
};
$j = 6;
echo $i($j);                    


                    


                    


                    
                                            


                

                


                A)  10                    
                    
                    
                                    

                B)  11                    
                    
                    
                                    

                C)  nothing                    
                    
                    
                                    

                D)  syntax error                    
                    
                    
                                    


            

            

        
            
                Question: 16 (ID:153)
                ID: 153

                


                

                    
                        John works as a professional ethical hacker. He has been assigned the project of testing the security of www.we-are-secure.com. On the We-are-secure login page, he enters ='or''=' as a username and successfully logs in to the user page of the Web site. To which of the following attacks is the We-are-secure login page vulnerable?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  Land attack                    
                    
                    
                                    

                B)  Replay attack                    
                    
                    
                                    

                C)  SQL injection attack                    
                    
                    
                                    

                D)  Dictionary attack                    
                    
                    
                                    


            
            

        
            
                Question: 17 (ID:628)
                ID: 628

                


                

                    
                        Which of the following SQL statements will improve SQLite write performance?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  PRAGMA default_synchronous = Off;                    
                    
                    
                                    

                B)  PRAGMA locking_mode = "Row";                    
                    
                    
                                    

                C)  PRAGMA default_synchronous = On;                    
                    
                    
                                    

                D)  PRAGMA count_changes = Off;                    
                    
                    
                                    


            
            

        
            
                Question: 18 (ID:516)
                ID: 516

                


                

                    
                        Consider the following code snippet:                    

                    


                    

                                                $query = "INSERT INTO mytable (myinteger, mydouble, myblob, myvarchar)
              VALUES (?, ?, ?, ?)";
$statement = mysqli_prepare($link, $query);
if (!$statement) {
        die(mysqli_error($link));
}
 /* The variables being bound to by MySQLi don't need to exist prior to binding */
 mysqli_bind_param($statement, "idbs", $myinteger, $mydouble, $myblob, $myvarchar);
 /* ???????????? */   
/* execute the query, using the variables as defined. */
if (!mysqli_execute($statement)) {
        die(mysqli_error($link));
}                    


                    


                    


                    
                        Assuming this snippet is a smaller part of a correctly written script, what actions must occur in place of the ????? in the above code snippet to insert a row with the following values: 10, 20.2, foo, string ?                    


                

                


                A)  Use mysqli_bind_value() to assign each of the values                    
                    
                    
                                    

                B)  Each value must be assigned prior to calling mysqli_bind_param(), and thus nothing should be done                    
                    
                    
                                    

                C)  Assign $myinteger, $mydouble, $myblob, $myvarchar the proper values                    
                    
                    
                                    

                D)  A transaction must be begun and the variables must be assigned                    
                    
                    
                                    


            

            

        
            
                Question: 19 (ID:3)
                ID: 3

                


                

                    
                        Consider the following code:                    

                    


                    

                                                $a = 5;
$b = 12;
$c = 10;
$d = 7;
$e = ($a * $b) + $c * $d / $a;
print($e);                    


                    


                    


                    
                        What will be the output of the above code?                    


                

                


                A)  154                    
                    
                    
                                    

                B)  74                    
                    
                    
                                    

                C)  130                    
                    
                    
                                    

                D)  26                    
                    
                    
                                    


            

            

        
            
                Question: 20 (ID:777)
                ID: 777

                


                

                    
                        What will happen when the following code is executed?                    

                    


                    

                                                interface Additionable {
    public function add($x, $y);
}

function average ($a, $b) {
    $anon = new class implements Additionable {
        public function divide($x, $y) {
            return $x / $y;
        }
        public function add($x, $y) {
            return $x + $y;
        }
    };

    $sum = $anon->add($a, $b);
    $average = $anon->divide($sum, 2);
    return $average;
}
echo average(10, 70);                    


                    


                    


                    
                                            


                

                


                A)  A fatal error because anonymous class should be declared using the "anonymousclas" keyword;                    
                    
                    
                                    

                B)  The code will work and '40' will be printed;                    
                    
                    
                                    

                C)  The code will work and 'null' will be printed;                    
                    
                    
                                    

                D)  A fatal error because anonymous class cannot implements interfaces;                    
                    
                    
                                    


            

            

        
            
                Question: 21 (ID:789)
                ID: 789

                


                

                    
                        Give the following expression: "$$foo['bar']". Which of the statements below are true?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  In is evaluated as {$$foo}['bar'] in both PHP 5 and PHP 7                    
                    
                    
                                    

                B)  In PHP 7, it will be evaluated as {$$foo}['bar']                    
                    
                    
                                    

                C)  Give that "$foo" is an array , such expressions are possible only in PHP 7                    
                    
                    
                                    

                D)  In PHP 5, it will be evaluated as ${$foo['bar']}                    
                    
                    
                                    


            
            

        
            
                Question: 22 (ID:546)
                ID: 546

                


                

                    
                        What is the output of the following?                    

                    


                    

                                                function a($number) {
    return (b($number) * $number);
}
function b(&$number) {
    return ++$number;
}
echo a(5);                    


                    


                    


                    
                                            


                

                


                A)  30                    
                    
                    
                                    

                B)  25                    
                    
                    
                                    

                C)  26                    
                    
                    
                                    

                D)  36                    
                    
                    
                                    


            

            

        
            
                Question: 23 (ID:32)
                ID: 32

                


                

                    
                        Consider the following PHP script:                    

                    


                    

                                                function b($a = 4) {
    $a = $a / 2;
    return $a;
}

$a = 10;
b($a);
echo $a;                    


                    


                    


                    
                        What will be the output?                    


                

                


                A)  5                    
                    
                    
                                    

                B)  The script will throw an error message.                    
                    
                    
                                    

                C)  2                    
                    
                    
                                    

                D)  10                    
                    
                    
                                    


            

            

        
            
                Question: 24 (ID:762)
                ID: 762

                


                

                    
                        Which of the following statements about autoloading is true?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  autoloading should be avoided due to high performance penalties                    
                    
                    
                                    

                B)  an autoloading function should throw an exception if it cannot find the required class                    
                    
                    
                                    

                C)  multiple autoloading functions can be defined using spl_autoload_register()                    
                    
                    
                                    

                D)  autoloading is executed whenever the name of an unidentified class is encountered in the code                    
                    
                    
                                    


            
            

        
            
                Question: 25 (ID:251)
                ID: 251

                


                

                    
                        Martin works as a Database Administrator for MTech Inc. He designs a database that has a table named Products. He wants to create a report listing different product categories. He does not want to display any duplicate row in the report. Which of the following SELECT statements will Martin use to create the report?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
SELECT DISTINCT Product_No, Prod_Category 
FROM Products;
                    
                    
                    
                                    

                B) 
SELECT Product_No, Prod_Category 
FROM Products 
GROUP BY Product_No 
ORDER BY Product_No;
                    
                    
                    
                                    

                C) 
SELECT Product_No, Prod_Category 
FROM Products 
GROUP BY Product_No;
                    
                    
                    
                                    

                D) 
SELECT Product_No, Prod_Category 
FROM Products;
                    
                    
                    
                                    


            
            

        
            
                Question: 26 (ID:380)
                ID: 380

                


                

                    
                        How do you remove an element with the key 0 from the array $numbers?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
$numbers[0] = null;
                    
                    
                    
                                    

                B) 
unset($numbers[0]);
                    
                    
                    
                                    

                C) 
array_pop($numbers);
                    
                    
                    
                                    

                D) 
array_shift($numbers);
                    
                    
                    
                                    


            
            

        
            
                Question: 27 (ID:579)
                ID: 579

                


                

                    
                        What does the following code print?                    

                    


                    

                                                $a = 'aaaa';
$b = 'bbbb';
echo $a ?? $b ?? 'cccc';                    


                    


                    


                    
                                            


                

                


                A)  null                    
                    
                    
                                    

                B)  aaaa                    
                    
                    
                                    

                C)  cccc                    
                    
                    
                                    

                D)  bbbb                    
                    
                    
                                    


            

            

        
            
                Question: 28 (ID:45)
                ID: 45

                


                

                    
                        You run the following PHP script:                    

                    


                    

                                                $a = 12;
$b = 11;   
$a > $b ? print($a) : print($b);                    


                    


                    


                    
                                            


                

                


                A)  11                    
                    
                    
                                    

                B)  The script will throw an error.                    
                    
                    
                                    

                C)  0                    
                    
                    
                                    

                D)  12                    
                    
                    
                                    


            

            

        
            
                Question: 29 (ID:652)
                ID: 652

                


                

                    
                        What should go in the missing line ????? below to produce the output shown?                    

                    


                    

                                                $array_one = array(1,2,3,4,5);
$array_two = array('A', 'B', 'C', 'D', 'E');
/* ????? */ 
print_r($array_three);    
/* Result:   
    Array
    (
        [5] => A
        [4] => B
        [3] => C
        [2] => D
        [1] => E
    )
*/                    


                    


                    


                    
                                            


                

                


                A) 
$array_three = array_merge(array_reverse($array_one), $array_two);
                    
                    
                    
                                    

                B) 
$array_three = array_combine(array_reverse($array_one), $array_two);
                    
                    
                    
                                    

                C) 
$array_three = array_combine($array_one, $array_two);
                    
                    
                    
                                    

                D) 
$array_three = array_merge($array_one, $array_two);
                    
                    
                    
                                    


            

            

        
            
                Question: 30 (ID:425)
                ID: 425

                


                

                    
                        What value should be assigned to $format to ensure the following script outputs 250007? It must use the d formatter.                    

                    


                    

                                                $number1 = 250;
$number2 = 7;
$format = '???';
echo sprintf($format, $number1);
echo sprintf($format, $number2);
// output is 250007                    


                    


                    


                    
                        Do not include quotes                    


                

                


                A)  "%1$03d"                    
                    
                    
                                    

                B)  0                    
                    
                    
                                    

                C)  it is imposible                    
                    
                    
                                    

                D)  an error                    
                    
                    
                                    


            

            

        
            
                Question: 31 (ID:198)
                ID: 198

                


                

                    
                        Which of the following is an XML protocol that implements the communication between one to another machine, including the publishing, finding, binding, and calling of a Webservice?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  POP3                    
                    
                    
                                    

                B)  SOAP                    
                    
                    
                                    

                C)  HTTP                    
                    
                    
                                    

                D)  REST                    
                    
                    
                                    


            
            

        
            
                Question: 32 (ID:293)
                ID: 293

                


                

                    
                        Which of the following statements is true about __FILE__ constant?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  It contains the path of the main script.                    
                    
                    
                                    

                B)  It contains the current line number of the file.                    
                    
                    
                                    

                C)  It contains the name of the file and full path.                    
                    
                    
                                    

                D)  It contains name of the directory having file and full path of the directory.                    
                    
                    
                                    


            
            

        
            
                Question: 33 (ID:513)
                ID: 513

                


                

                    
                        Which of the following functions are used with the internal array pointer to accomplish an action?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  next                    
                    
                    
                                    

                B)  key                    
                    
                    
                                    

                C)  prev                    
                    
                    
                                    

                D)  current                    
                    
                    
                                    


            
            

        
            
                Question: 34 (ID:595)
                ID: 595

                


                

                    
                        Setting a cookie on the client in PHP 5 can be best accomplished by:                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  Use the setcookie() function                    
                    
                    
                                    

                B)  Use the add_cookie() function                    
                    
                    
                                    

                C)  Setting a variable in the $_COOKIE superglobal                    
                    
                    
                                    

                D)  Use the the apache_send_header() function                    
                    
                    
                                    


            
            

        
            
                Question: 35 (ID:35)
                ID: 35

                


                

                    
                        In which of the following ways does the identity operator === compare two values?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  It evaluates to true only if the operands are of the same data type and have the same value.                    
                    
                    
                                    

                B)  If the two values are strings, it performs a lexical comparison.                    
                    
                    
                                    

                C)  It evaluates to true if the two operands are equivalent.                    
                    
                    
                                    

                D)  It is an alias of strcmp() function.                    
                    
                    
                                    


            
            

        
            
                Question: 36 (ID:383)
                ID: 383

                


                

                    
                        In the following code, what is the key of the element with value 25?                    

                    


                    

                                                $myArray = ['foo' => 'bar',  7 => 15,  28];
$myArray[] = 25;                    


                    


                    


                    
                                            


                

                


                A)  null                    
                    
                    
                                    

                B)  9                    
                    
                    
                                    

                C)  29                    
                    
                    
                                    

                D)  0                    
                    
                    
                                    


            

            

        
            
                Question: 37 (ID:192)
                ID: 192

                


                

                    
                        Which of the following functions can you use to add data? Each correct answer represents a complete solution. Choose all that apply.                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
DomElement::setAttribute()
                    
                    
                    
                                    

                B) 
DomNode::appendChild()
                    
                    
                    
                                    

                C) 
DomNode::insertBefore()
                    
                    
                    
                                    

                D) 
DomNode::cloneNode()
                    
                    
                    
                                    


            
            

        
            
                Question: 38 (ID:146)
                ID: 146

                


                

                    
                        Consider the following PHP script:                    

                    


                    

                                                $a = 5; 
$b = 4; 
$c = ($a++ * ++$b);  
echo $c;                    


                    


                    


                    
                        What will be the output?                    


                

                


                A)  21                    
                    
                    
                                    

                B)  25                    
                    
                    
                                    

                C)  20                    
                    
                    
                                    

                D)  27                    
                    
                    
                                    


            

            

        
            
                Question: 39 (ID:379)
                ID: 379

                


                

                    
                        In the following code, what are the values required in $a, $b, $c and $d to output 40?                    

                    


                    

                                                $values = array(
    array(
        1 => 10,
        20,
        array(30, array(40))
    ),
    array(
        2 => 50,
        array(
            array(1 => 60, 0 => 70)
        )
    )
);

echo $values[$a][$b][$c][$d];                    


                    


                    


                    
                                            


                

                


                A)  $a = 0, $b = 3, $c = 1, $d = 0                    
                    
                    
                                    

                B)  $a = 0, $b = 1, $c = 1, $d = 0                    
                    
                    
                                    

                C)  $a = 0, $b = 1, $c = 0, $d = 0                    
                    
                    
                                    

                D)  $a = 1, $b = 3, $c = 1, $d = 0                    
                    
                    
                                    


            

            

        
            
                Question: 40 (ID:417)
                ID: 417

                


                

                    
                        What is the output of the following script?                    

                    


                    

                                                $str = 'abcd';
echo substr($str, 0, 1);
echo substr($str, 0, -1);
echo substr($str, 3, 1);
echo substr($str, 3);
echo substr($str, -3);                    


                    


                    


                    
                        Enter the exact script output                    


                

                


                A)  dec                    
                    
                    
                                    

                B)  a                    
                    
                    
                                    

                C)  abc                    
                    
                    
                                    

                D)  aabcddbcd                    
                    
                    
                                    


            

            

        
            
                Question: 41 (ID:781)
                ID: 781

                


                

                    
                        What does the following code print?                    

                    


                    

                                                function getName(): ?string {
    return "ElNi\u{{{00F}}}o";
}
echo getName();                    


                    


                    


                    
                                            


                

                


                A)  ElNi{{{00F}}}o                    
                    
                    
                                    

                B)  ElNiño                    
                    
                    
                                    

                C)  ElNio                    
                    
                    
                                    

                D)  A parse error because "?string" is not a valid return type                    
                    
                    
                                    


            

            

        
            
                Question: 42 (ID:543)
                ID: 543

                


                

                    
                        Which of the following is not a valid default stream wrapper for PHP 5, assuming OpenSSL is enabled?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  https://                    
                    
                    
                                    

                B)  ftp://                    
                    
                    
                                    

                C)  sftp://                    
                    
                    
                                    

                D)  ftps://                    
                    
                    
                                    


            
            

        
            
                Question: 43 (ID:139)
                ID: 139

                


                

                    
                        Which of the following functions will sort an array in ascending order by value, while preserving key associations?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
ksort()
                    
                    
                    
                                    

                B) 
krsort()
                    
                    
                    
                                    

                C) 
usort()
                    
                    
                    
                                    

                D) 
asort()
                    
                    
                    
                                    


            
            

        
            
                Question: 44 (ID:614)
                ID: 614

                


                

                    
                        What is the result of the following code snippet?                    

                    


                    

                                                $array = array(
    'a' => 'John',
    'b' => 'Coggeshall',
    'c' => array(
        'd' => 'John',
        'e' => 'Smith'
    )
);

function something($array) {
    extract($array);
    return $c['e'];
}

print something($array);                    


                    


                    


                    
                                            


                

                


                A)  Smith                    
                    
                    
                                    

                B)  A PHP Warning                    
                    
                    
                                    

                C)  NULL                    
                    
                    
                                    

                D)  Coggeshall                    
                    
                    
                                    


            

            

        
            
                Question: 45 (ID:240)
                ID: 240

                


                

                    
                        Consider the following PHP code snippet:                    

                    


                    

                                                $who = "World";
echo <<<TEXT
"Hello $who"
TEXT;                    


                    


                    


                    
                        What will be the output?                    


                

                


                A)  "Hello World"                    
                    
                    
                                    

                B)  TEXT "Hello $who"                    
                    
                    
                                    

                C)  TEXT "Hello World"                    
                    
                    
                                    

                D)  <<< TEXT "Hello $who"                    
                    
                    
                                    


            

            

        
            
                Question: 46 (ID:581)
                ID: 581

                


                

                    
                        To destroy one variable within a PHP session you should use which method in PHP 5?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  Use the session_destroy() function                    
                    
                    
                                    

                B)  unset the variable in $_SESSION using unset()                    
                    
                    
                                    

                C)  Unset the variable in $HTTP_SESSION_VARS                    
                    
                    
                                    

                D)  Use the session_unset() function                    
                    
                    
                                    


            
            

        
            
                Question: 47 (ID:687)
                ID: 687

                


                

                    
                        Which of the following functions are part of PHP's internal Iterator interface?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
rewind()
                    
                    
                    
                                    

                B) 
next()
                    
                    
                    
                                    

                C) 
valid()
                    
                    
                    
                                    

                D) 
key()
                    
                    
                    
                                    


            
            

        
            
                Question: 48 (ID:162)
                ID: 162

                


                

                    
                        Which of the following functions can be used as a countermeasure to a Shell Injection attack? Each correct answer represents a complete solution. Choose all that apply.                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
escapeshellcmd()
                    
                    
                    
                                    

                B) 
regenerateid()
                    
                    
                    
                                    

                C) 
mysqli_real_escape_string()
                    
                    
                    
                                    

                D) 
escapeshellarg()
                    
                    
                    
                                    


            
            

        
            
                Question: 49 (ID:625)
                ID: 625

                


                

                    
                        What is the best approach for converting this string:                    

                    


                    

                                                $string = "a=10&b[]=20&c=30&d=40+50";

// Into this array?

array(- [ ] {
      ["a"]=>
      string(- [ ] "10"
      ["b"]=>
      array(- [ ] {
        [0]=>
        string(- [ ] "20"
      }
      ["c"]=>
      string(- [ ] "30"
      ["d"]=>
      string(- [ ] "40 50"
}                    


                    


                    


                    
                                            


                

                


                A)  Write a parser completely by hand, it's the only way to make sure it's 100% accurate                    
                    
                    
                                    

                B)  Just call unserialize() to translate it to an array()                    
                    
                    
                                    

                C)  Pass the variable to another PHP script via an HTTP GET request and return the array as a serialized variable                    
                    
                    
                                    

                D)  Use the parse_str() function to translate it to an array()                    
                    
                    
                                    


            

            

        
            
                Question: 50 (ID:783)
                ID: 783

                


                

                    
                        What is the result of the following code?                    

                    


                    

                                                class MyCollection {
    private $coll = [];    
    public function add(?int $x): void {
        $this->coll[] = $x ?? 0;
    }   
    public function getElements(): iterable {
        return $this->coll;
    }
}

$collection = new MyCollection();
$collection->add(null);
$collection->add(1);
$collection->add(0);
print_r($collection->getElements());                    


                    


                    


                    
                                            


                

                


                A)  A parse error because the "?int" type does not exist;                    
                    
                    
                                    

                B)  Array([0] => 0, [1] => 1, [2] => 0);                    
                    
                    
                                    

                C)  A runtime error because the "coll" field is not "iterable"; "array" should be used instead;                    
                    
                    
                                    

                D)  A parse error because the "??" operator can be applied only to strings;                    
                    
                    
                                    


            

            

        
            
                Question: 51 (ID:117)
                ID: 117

                


                

                    
                        Consider the following PHP code snippet:                    

                    


                    

                                                class A {
    static $word = "hello";
    static function hello() {
        print static::$word;
    }
}
class B extends A {
    static $word = "bye";
}
B::hello();                    


                    


                    


                    
                        What will be the output on running the above mentioned code snippet?                    


                

                


                A)  bye                    
                    
                    
                                    

                B)  The script will throw an error.                    
                    
                    
                                    

                C)  hello                    
                    
                    
                                    

                D)  hellobye                    
                    
                    
                                    


            

            

        
            
                Question: 52 (ID:189)
                ID: 189

                


                

                    
                        Which of the following is used to retrieve the namespaces declared in an XML document from a SimpleXMLElement object?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
getName()
                    
                    
                    
                                    

                B) 
getNamespaces()
                    
                    
                    
                                    

                C) 
children()
                    
                    
                    
                                    

                D) 
getDocNamespaces()
                    
                    
                    
                                    


            
            

        
            
                Question: 53 (ID:774)
                ID: 774

                


                

                    
                        What is the result of the following code?                    

                    


                    

                                                $a = null;
$b = 1;
$c = 'c';

echo $a ?? '!a';
echo $b ?? '!b';
echo $c ?? '!c';
echo $d ?? '!d';                    


                    


                    


                    
                                            


                

                


                A)  A parse error because the "??" operator does not  exist in PHP                    
                    
                    
                                    

                B)  A warning saying that "$d" is not declared;                    
                    
                    
                                    

                C)  !a1c!d                    
                    
                    
                                    

                D)  1c                    
                    
                    
                                    


            

            

        
            
                Question: 54 (ID:129)
                ID: 129

                


                

                    
                        What is the output of the following code?                    

                    


                    

                                                class A {};
class B1 extends A {};
class_alias('A', 'B2');
$b1 = new B1; echo get_class($b1); 
$b2 = new B2; echo get_class($b2);                    


                    


                    


                    
                                            


                

                


                A)  B1B2                    
                    
                    
                                    

                B)  It will throw an error.                    
                    
                    
                                    

                C)  B2A                    
                    
                    
                                    

                D)  B1A                    
                    
                    
                                    


            

            

        
            
                Question: 55 (ID:265)
                ID: 265

                


                

                    
                        Which of the following HTML code snippets can be used for the file uploading?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
<form enctype="plain" action="index.php" method="post">
                    
                    
                    
                                    

                B) 
<form enctype="application/x-www-form-urlencoded" action="index.php" method="post">
                    
                    
                    
                                    

                C) 
<form enctype="text/plain" action="index.php" method="post">
                    
                    
                    
                                    

                D) 
<form enctype="multipart/form-data" action="index.php" method="post">
                    
                    
                    
                                    


            
            

        
            
                Question: 56 (ID:109)
                ID: 109

                


                

                    
                        Consider the following PHP script:                    

                    


                    

                                                $var1 = ["foo", "bar", "hello", "world", "PHP", "nice"];
$var2 = ["foo", "bar", "hello", "PHP", "nice", "language"];

echo count(array_merge(array_diff($var1, $var2), array_diff($var2, $var1)));                    


                    


                    


                    
                        What will be the output of the script?                    


                

                


                A)  4                    
                    
                    
                                    

                B)  3                    
                    
                    
                                    

                C)  1                    
                    
                    
                                    

                D)  2                    
                    
                    
                                    


            

            

        
            
                Question: 57 (ID:214)
                ID: 214

                


                

                    
                        All of the following are the advantages of Webservice except for which one?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  It provides potential SOAP extension.                    
                    
                    
                                    

                B)  It provides CURL support.                    
                    
                    
                                    

                C)  It provides OOPS support.                    
                    
                    
                                    

                D)  It provides MXML support.                    
                    
                    
                                    


            
            

        
            
                Question: 58 (ID:547)
                ID: 547

                


                

                    
                        What is the output of the following?                    

                    


                    

                                                function a(&$apples) {
    $apples++;
}
$oranges = 5;
$apples = 5;
a($oranges);
echo "I have $apples apples and $oranges oranges";                    


                    


                    


                    
                                            


                

                


                A)  I have 5 apples and 6 oranges                    
                    
                    
                                    

                B)  I have 6 apples and 5 oranges                    
                    
                    
                                    

                C)  I have 5 apples and 5 oranges                    
                    
                    
                                    

                D)  I have 6 apples and 6 oranges                    
                    
                    
                                    


            

            

        
            
                Question: 59 (ID:747)
                ID: 747

                


                

                    
                        What is the output of the following code?                    

                    


                    

                                                $a  = ['1' => "A", 1 => "B", 2 => "D"];
echo count($a);                    


                    


                    


                    
                                            


                

                


                A)  1                    
                    
                    
                                    

                B)  2                    
                    
                    
                                    

                C)  3                    
                    
                    
                                    

                D)  0                    
                    
                    
                                    


            

            

        
            
                Question: 60 (ID:612)
                ID: 612

                


                

                    
                        Consider the following script:                    

                    


                    

                                                function func(&$arraykey) {
    return $arraykey; // function returns by value!
}
$array = array('a', 'b', 'c');
foreach (array_keys($array) as $key) {
    $y = &func($array[$key]);
    $z[] =& $y;
}
var_dump($z);                    


                    


                    


                    
                        This code has changed behavior in PHP 5. Identify the output of this script as it would have been in PHP 4, as well as the new behavior in PHP 5.                    


                

                


                A)  array('a', 'a', 'b')                    
                    
                    
                                    

                B)  array('a', 'b', 'c')                    
                    
                    
                                    

                C)  array('c', 'b', 'a')                    
                    
                    
                                    

                D)  array('c', 'c', 'c')                    
                    
                    
                                    


            

            

        
            
                Question: 61 (ID:704)
                ID: 704

                


                

                    
                        When running PHP's built in FastCGI Process Manager (FPM) which of the following statements are true ?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  It doesn't provide any easy way of debugging slow performing requests/scripts                    
                    
                    
                                    

                B)  Settings initialized in the php-fpm.conf file with php_admin_flag can not be overwritten in the code through ini_set()                    
                    
                    
                                    

                C)  The special fastcgi_finish_request() function allows PHP to finish request and flush all data while continuing to do various tasks in the background                    
                    
                    
                                    

                D)  All variant are true                    
                    
                    
                                    


            
            

        
            
                Question: 62 (ID:804)
                ID: 804

                


                

                    
                        What is the output of the following code?                    

                    


                    

                                                function func($x, $x = 2, $x = 3)   {
    return $x;
}
echo func(3);                    


                    


                    


                    
                                            


                

                


                A)  3 will be printed                    
                    
                    
                                    

                B)  2 will be printed                    
                    
                    
                                    

                C)  Fatal error: Redefinition of parameter $x                    
                    
                    
                                    

                D)  None of the above                    
                    
                    
                                    


            

            

        
            
                Question: 63 (ID:78)
                ID: 78

                


                

                    
                        You run the following code:                    

                    


                    

                                                $array = ['a1' => 'x', 'a2' => 'e', 'a3' => 'z'];
ksort($array);
foreach($array as $key => $value) {
  print "$key = $value ";
}                    


                    


                    


                    
                        What will be the output?                    


                

                


                A)  a1 = e a2 = x a3 = z                    
                    
                    
                                    

                B)  The script will throw an error message.                    
                    
                    
                                    

                C)  0 = e 1 = x 2 = z                    
                    
                    
                                    

                D)  a1 = x a2 = e a3 = z                    
                    
                    
                                    


            

            

        
            
                Question: 64 (ID:776)
                ID: 776

                


                

                    
                        What is the result of tht following code?                    

                    


                    

                                                echo 1 <=> 2;
echo 'aa' <=> 'zz';
echo [1,2,3] <=> [7,8,9];                    


                    


                    


                    
                                            


                

                


                A)  -1-1-1                    
                    
                    
                                    

                B)  nullnullnull                    
                    
                    
                                    

                C)  falsfalsfals                    
                    
                    
                                    

                D)  truetruetrue                    
                    
                    
                                    


            

            

        
            
                Question: 65 (ID:696)
                ID: 696

                


                

                    
                        When working with unfamiliar code, what is the best way to find out in which file a class is defined ?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  all
                    
                    
                    
                                    

                B) 
# Using ReflectionClass:
$reflection = new ReflectionClass('ClassName');
echo $reflection->getFileName();
                    
                    
                    
                                    

                C) 
# Using the grep command to search through the application files:
$out = array();
exec("grep -r 'Classname' .", $out);
var_dump($out);
                    
                    
                    
                                    

                D) 
# Using the get_declared_classes() function:
$classes = get_declared_classes();
var_dump($classes);
                    
                    
                    
                                    


            
            

        
            
                Question: 66 (ID:12)
                ID: 12

                


                

                    
                        Consider the following script:                    

                    


                    

                                                <?= strtotime("january 1, 1901"); ?>
                    


                    


                    


                    
                        What will be the output of the above PHP script if the older versions of glibc are present in the operating system?                    


                

                


                A)  0                    
                    
                    
                                    

                B)  12365                    
                    
                    
                                    

                C)  -1                    
                    
                    
                                    

                D)  14345                    
                    
                    
                                    


            

            

        
            
                Question: 67 (ID:118)
                ID: 118

                


                

                    
                        Which operator can be used to decide whether or not an object of a class is inheriting property from another class?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  Logical                    
                    
                    
                                    

                B)  Array                    
                    
                    
                                    

                C)  Execution                    
                    
                    
                                    

                D)  instanceof                    
                    
                    
                                    


            
            

        
            
                Question: 68 (ID:29)
                ID: 29

                


                

                    
                        You have been given a code snippet as follows:                    

                    


                    

                                                $somearray = ["hi", "this is a string", "this is a code"];                    


                    


                    


                    
                        You want to iterate this array and modify the value of each of its elements.
Which of the following is the best possible to accomplish the task?                    


                

                


                A)  Do while loop                    
                    
                    
                                    

                B)  For loop                    
                    
                    
                                    

                C)  While loop                    
                    
                    
                                    

                D)  For each loop                    
                    
                    
                                    


            

            

        
            
                Question: 69 (ID:698)
                ID: 698

                


                

                    
                        Considering the code below                    

                    


                    

                                                class AppException extends Exception {
  function __toString() {
    return "Your code has just thrown an exception: {$this->message}\n";
  }
}

class Students {
  public $first_name;
  public $last_name;

  public function __construct($first_name, $last_name) {
    if(empty($first_name)) {
      throw new AppException('First Name is required', 1);
    }

    if(empty($last_name)) {
      throw new AppException('Last Name is required', 2);
    }
  }
}

try {
    new Students('', ''); 
} catch (Exception $e) {
    echo $e;
}                    


                    


                    


                    
                        Which of these statements are correct ?                    


                

                


                A)  The catch (Exception $e) statement is wrong because it accepts an instance of the Exception class as the parameter. It should use an instance of the AppException class instead.                    
                    
                    
                                    

                B)  The __toString() method can't be overwritten in a child class because the methods in the Exception class are all final but for the constructor                    
                    
                    
                                    

                C)  The magic __toString() method will be invoked automatically when the code enters the catch() statement and the custom exception message will be printed                    
                    
                    
                                    

                D)  all                    
                    
                    
                                    


            

            

        
            
                Question: 70 (ID:63)
                ID: 63

                


                

                    
                        You run the following PHP script:                    

                    


                    

                                                $a = "b";
$b = 20;
echo $$a;                    


                    


                    


                    
                        What will be the output?                    


                

                


                A)  0                    
                    
                    
                                    

                B)  20                    
                    
                    
                                    

                C)  Script will show an error.                    
                    
                    
                                    

                D)  b                    
                    
                    
                                    


            

            

        
            
                Question: 71 (ID:431)
                ID: 431

                


                

                    
                        What would be output when the following code is run?                    

                    


                    

                                                class M {
   function m() {
      echo "M";
   }
   function construct() {
      echo "mmm";
   }
}
$m = new M();
$m->m();                    


                    


                    


                    
                                            


                

                


                A)  MM                    
                    
                    
                                    

                B)  mmMMM                    
                    
                    
                                    

                C)  MMmmm                    
                    
                    
                                    

                D)  mmm                    
                    
                    
                                    


            

            

        
            
                Question: 72 (ID:728)
                ID: 728

                


                

                    
                        Is there a way to make E_NOTICE type errors behave like fatal errors in PHP and therefor stop script execution when such an error occurs ?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  There's no way to do that. Notices are exactly what their name states: Notices.                    
                    
                    
                                    

                B)  All are incorect                    
                    
                    
                                    

                C)  By setting a custom error handler, one can alter the way PHP treats E_NOTICE errors and then stop the script.                    
                    
                    
                                    

                D)  By using the "register_shutdown_function()" a developer can stop script execution at any time, including when notices are thrown.                    
                    
                    
                                    


            
            

        
            
                Question: 73 (ID:61)
                ID: 61

                


                

                    
                        Which of the following functions allows you to stack several error handlers on top of each other?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
setError()
                    
                    
                    
                                    

                B) 
error_handler()
                    
                    
                    
                                    

                C) 
set_error_handler()
                    
                    
                    
                                    

                D) 
errorHandler()
                    
                    
                    
                                    


            
            

        
            
                Question: 74 (ID:104)
                ID: 104

                


                

                    
                        What will be the output of the following PHP script?                    

                    


                    

                                                $array = [
    'a' => 'One', 
    'b' => 'Two', 
    'c' => [
        'd' => 'Three', 
        'e' => 'Four'
   ]
];
function print_element($array) {
    extract($array);
    return $c['e'];
 }
 print print_element($array);                    


                    


                    


                    
                                            


                

                


                A)  One                    
                    
                    
                                    

                B)  Two                    
                    
                    
                                    

                C)  Three                    
                    
                    
                                    

                D)  Four                    
                    
                    
                                    


            

            

        
            
                Question: 75 (ID:67)
                ID: 67

                


                

                    
                        You run the following script:                    

                    


                    

                                                $a = 6 - 10 % 4;
echo $a;                    


                    


                    


                    
                        What will be the output?                    


                

                


                A)  5                    
                    
                    
                                    

                B)  4                    
                    
                    
                                    

                C)  2                    
                    
                    
                                    

                D)  3