<!DOCTYPE html>
<html>
<body>
<?php
// Make the URL rewriter affect <a href> and <form> tags
ini_set('url_rewriter.tags','a=href,form=');
// Add a variable
output_add_rewrite_var('var', 'value');
echo '<a href="">This link (URL) will have a variable</a><br>';
ob_flush();
// Remove the variable
output_reset_rewrite_vars();
echo '<a href="">This link (URL) will not have a variable</a>';
?>
</body>
</html>
