Executing a php script in javascript?

Question

I\'m trying to run a quick php script when users leave my website, and also pass a variable from my javascript to php but i\'m not quite sure how to include the php file and

Answer 1

You need to make an AJAX call to the PHP script. Your javascript code will just make a background request to the php script which will execute those MySQL statements. Google up AJAX. Recommended: Learn jQuery and use ajax using $.get() or $.post()

Answer 2

Try an ajax request. Depending on your php script you will need $.post or $.get

jQuery:

<script language="javascript" type="text/javascript">

    var username = null;

    function GetUsername(usernameff){
        username = usernameff;
    }

    window.onbeforeunload = function(){
        if (username != null){
          $.post('scripts/RemoveUserOnDisconnect.php', {username: username}, function(){
            //successful ajax request
          }).error(function(){
            alert('error... ohh no!');
          });

        }
    }
 </script>

EDIT:

Your php script should reference the $_POST array if you use my code above.

<?php
    $username = $_POST['username'];

    mysql_connect("mysql.mysql.com", "username", "password");
    mysql_select_db("my_db");
    mysql_query("DELETE FROM my_table WHERE username = '$username'");         
?>

Answer 3

Make an ajax call to scripts/RemoveUserOnDisconnect.php?username=username. You cannot include PHP with Javascript, Javascript executes on the browser, PHP executes on the server..