What is the function of backtick (`) characters in PHP?
                                
A.Same as single-quotes, used to enclose strings.
B.Escape operators.
C.No special meaning.
D.Execute the enclosed string as a command.
E.Error control operators.
                              
Click To Show Ans:D
                        

                                
You want to access the 3rd character of a string, contained in the variable $testWhich of the
following possibilites work?(Choose 2)
                                
A.echo $test(3)
B.echo $test[2];
C.echo $test(2);
D.echo $test{2};
E.echo $test{3}
                              
Click To Show Ans:B,D
                        

                                
What will the following function call return?
strstr('http://example.com/test/file.php', '/');
                                
A./example.com/
B./file.php
C.file.php
D.//example.com/test/file.php
                              
Click To Show Ans:D
                        

                                
What is the length of a string returned by: md5(rand(), TRUE);
                                
A.Depends on the value returned by rand() function
B.32
C.24
D.16
E.64
                              
Click To Show Ans:D
                        

                                
What will the $array array contain at the end of this script?

 <?php
 function modifyArray (&$array)
 {
  foreach ($array as &$value)
  {
   $value = $value + 1;
 }

  $value = $value + 2;
 }

 $array = array (1, 2, 3);
 modifyArray($array);
 ?>
                                
A.2, 3, 4
B.2, 3, 6
C.4, 5, 6
D.1, 2, 3
                              
Click To Show Ans:B