";}$function_holder = "sayHello";$function_holder();?>"/>

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Discussion :: PHP - CS

  1. What will be the output of the following PHP code?

    <?php
    function sayHello()
    {
       echo "HelloWorld<br />";
    }
    $function_holder = "sayHello";
    $function_holder();
    ?>
    2. A.

     No Output
    B.

     Error
    C.

     sayHello
    D.

     HelloWorld

    View Answer

    Workspace

    View Answer

    Answer : Option D

    Explanation :

    It is possible to assign function names as strings to variables and then treat these variables exactly as you would the function name itself.

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