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banago/is_ajax.php

Created March 28, 2012 16:41
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Tests if the current request is an AJAX request
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is_ajax.php
<?php
/**
* Tests if the current request is an AJAX request by checking the X-Requested-With HTTP
* request header that most popular JS frameworks now set for AJAX calls.
*
* @return boolean
*/
function is_ajax()
{
return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest');
}
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