February 11, 2011 
Definition:
function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) {}
Verifies the AJAX request to prevent processing requests external of the blog.
Parameters
- string $action: Action nonce
- string $query_arg: where to look for nonce in $_REQUEST (since 2.5)
- $die
Defined actions
- check_ajax_referer
do_action('check_ajax_referer', $action, $result);
Source code
function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) {
if ( $query_arg )
$nonce = $_REQUEST[$query_arg];
else
$nonce = isset($_REQUEST['_ajax_nonce']) ? $_REQUEST['_ajax_nonce'] : $_REQUEST['_wpnonce'];
$result = wp_verify_nonce( $nonce, $action );
if ( $die && false == $result )
die('-1');
do_action('check_ajax_referer', $action, $result);
return $result;
}
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