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Editorial Team
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Asked: 2026-06-12T15:41:52+00:00

I am trying to call a javascript function from php. According to all of

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I am trying to call a javascript function from php. According to all of the examples I have been looking at the following should work but it doesn’t. Why not?

 <?php
    echo "function test";
    echo '<script type="text/javascript">    run();      </script>';
?>

<html>
    <script type="text/javascript">
        function run(){
            alert("hello world");
        }
    </script>
</html>
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1 Answer

  1. Editorial Team

    Your html is invalid. You’re missing some tags.

    And you need to call the function after it has been declared, like this

    <html>
    <head>
       <title></title>

       <script type="text/javascript">
            function run(){
                alert("hello world");
            }

           <?php
               echo "run();";
           ?>
       </script>

    </head>
    <body>
    </body>
</html>

    In this case you can place the run before the method declaration, but as soon as you wrap the method call inside another script tag, the script tag has to be after the method declaration.

    Try yourself http://jsfiddle.net/qdwXv/

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