Question: 1 (ID:367)

ID: 367

What is the output of the following PHP script?

                        $arr1 = ['a' => 'Apple',  'b' => 'Banana'];
$arr2 = ['b' => 'Banana', 'a' => 'Australia',  'Apple'];
$arr3 = array_diff($arr1, $arr2);
$arr4 = array_diff($arr2, $arr1);
$keys = array_keys($arr4);

echo count($arr3) . ' - ' . $keys[0];


            

        
            
                Question: 2 (ID:311)
                ID: 311

                


                

                    
                        Which of the statements below best describe the following PHP code. Note that backticks are being used (not single quotes).                    

                    


                    

                                                $output = `ls`;                    


                    


                    


                    
                                            


                

                


                A)  The value 'ls' is assigned to $output and written to the system log file.                    
                    
                    
                                    

                B)  The 'ls' command is executed and its output is assigned to $output                    
                    
                    
                                    

                C)  The 'ls' command is executed and its output is written to the system log file.                    
                    
                    
                                    

                D)  The value 'ls' is assigned to $output.                    
                    
                    
                                    


            

            

        
            
                Question: 3 (ID:119)
                ID: 119

                


                

                    
                        Which of the following access controls specifies that a feature can be accessed by any other class?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A)  Private                    
                    
                    
                                    

                B)  Abstract                    
                    
                    
                                    

                C)  Protected                    
                    
                    
                                    

                D)  Public                    
                    
                    
                                    


            
            

        
            
                Question: 4 (ID:550)
                ID: 550

                


                

                    
                        The following code snippet displays what for the resultant array?                    

                    


                    

                                                $a = array(1 => 0, 3 => 2, 4 => 6);
$b = array(3 => 1, 4 => 3, 6 => 4);    
print_r(array_intersect($a, $b));                    


                    


                    


                    
                                            


                

                


                A)  1 => 0                    
                    
                    
                                    

                B)  An empty Array                    
                    
                    
                                    

                C)  3 => 1, 3=> 2, 4 => 3, 4=> 6                    
                    
                    
                                    

                D)  1 => 3, 3 => 1, 4 => 3                    
                    
                    
                                    


            

            

        
            
                Question: 5 (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)  0                    
                    
                    
                                    

                B)  9                    
                    
                    
                                    

                C)  29                    
                    
                    
                                    

                D)  null                    
                    
                    
                                    


            

            

        
            
                Question: 6 (ID:103)
                ID: 103

                


                

                    
                        What is the result of the following code?                    

                    


                    

                                                function foo() {
    return array_sum(func_get_args());
}
$x = foo(1,2,3);
echo ($x ?? 'x');                    


                    


                    


                    
                                            


                

                


                A)  6??x                    
                    
                    
                                    

                B)  6                    
                    
                    
                                    

                C)  x                    
                    
                    
                                    

                D)  A parse error because ?? operator does not exist in PHP7                    
                    
                    
                                    


            

            

        
            
                Question: 7 (ID:9)
                ID: 9

                


                

                    
                        Which of the below provided options is correct regarding the below code?                    

                    


                    

                                                $a = array(1, 2, 3);
$b = array(1=> 2, 2 => 3, 0 => 1);
$c = array('a' => 1,'b' => 2,'c' => 3);
var_dump($a == $b);
var_dump($a === $b);
var_dump($a == $c);                    


                    


                    


                    
                                            


                

                


                A)  false true true                    
                    
                    
                                    

                B)  true false true                    
                    
                    
                                    

                C)  true false false                    
                    
                    
                                    

                D)  true true false                    
                    
                    
                                    


            

            

        
            
                Question: 8 (ID:205)
                ID: 205

                


                

                    
                        Which of the following is a valid SOAP client call?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
$client = new SoapClient("any.wsdl");
                    
                    
                    
                                    

                B) 
$client = new SoapClient;
                    
                    
                    
                                    

                C) 
$client => SoapClient = "any.wsdl";
                    
                    
                    
                                    

                D) 
$client = new SoapClient(null, array());
                    
                    
                    
                                    


            
            

        
            
                Question: 9 (ID:55)
                ID: 55

                


                

                    
                        Which of the following is NOT a valid PHP variable name?                    

                    


                    

                                                                    

                    

                    


                    
                                            


                
                


                A) 
$$a
                    
                    
                    
                                    

                B) 
$_a
                    
                    
                    
                                    

                C) 
$1a
                    
                    
                    
                                    

                D) 
$a
                    
                    
                    
                                    


            
            

        
            
                Question: 10 (ID:161)
                ID: 161

                


                

                    
                        Consider the following PHP script:                    

                    


                    

                                                <?= "Welcome, {$_POST['name']}.";                     


                    


                    


                    
                        What type of attack is possible with this PHP script?                    


                

                


                A)  Cross-site scripting attack                    
                    
                    
                                    

                B)  Replay attack                    
                    
                    
                                    

                C)  session fixation                    
                    
                    
                                    

                D)  SQL injection attack