do_action( ‘check_ajax_referer’, string $action, false|int $result )

Fires once the Ajax request has been validated or not.

Parameters

$actionstring: The Ajax nonce action.
$resultfalse|int: False if the nonce is invalid, 1 if the nonce is valid and generated between 0-12 hours ago, 2 if the nonce is valid and generated between 12-24 hours ago.

do_action( 'check_ajax_referer', $action, $result );

Used by	Description
check_ajax_referer()`wp-includes/pluggable.php`	Verifies the Ajax request to prevent processing requests external of the blog.

Version	Description
2.1.0	Introduced.

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