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

动作钩子：：在管理请求被验证或未验证后激发。
Action Hook: Fires once the admin request has been validated or not.

目录锚点：#参数#源码

参数（Parameters）

源码（Source）

/**
 * Makes sure that a user was referred from another admin page.
 *
 * To avoid security exploits.
 *
 * @since 1.2.0
 *
 * @param int|string $action    Action nonce.
 * @param string     $query_arg Optional. Key to check for nonce in `$_REQUEST` (since 2.5).
 *                              Default '_wpnonce'.
 * @return false|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.
 */
function check_admin_referer( $action = -1, $query_arg = '_wpnonce' ) {
	if ( -1 == $action )
		_doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '3.2' );

	$adminurl = strtolower(admin_url());
	$referer = strtolower(wp_get_referer());
	$result = isset($_REQUEST[$query_arg]) ? wp_verify_nonce($_REQUEST[$query_arg], $action) : false;

	/**
	 * Fires once the admin request has been validated or not.
	 *
	 * @since 1.5.1
	 *
	 * @param string    $action The nonce action.
	 * @param false|int $result 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_admin_referer', $action, $result );

	if ( ! $result && ! ( -1 == $action && strpos( $referer, $adminurl ) === 0 ) ) {
		wp_nonce_ays( $action );
		die();
	}

	return $result;
}
endif;

if ( !function_exists('check_ajax_referer') ) :