Question

Possible Duplicate:
How to pass value from javascript to php file

would something like this work?

<script>
    var a;
    a = 5;
<?php
    $b = ?>a;
</script>

I am wondering if I can have javascript parsed by the client-side and have the output information be picked up by PHP as a variable that can be used elsewhere.

Answer 1

You could actually have your JS parsed with PHP if you:

• configured your web server to parse .js files, or,
• gave your JS file a .php extension and configured the response header with the appropriate content type

e.g.:

<?php header('Content-type: text/javascript');?>

You’d also need to have a PHP include or at least the relevant code to populate the required variables.

Note it’s best practice to not use PHP short-tags – your php.ini should be configured to not allow them. i.e., do this:

<?php echo %b %>

instead of this:

<? echo %b %>