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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
835 | $result = wp_verify_nonce( $nonce, $action ); |
836 |
|
837 | if ( $die && false == $result ) { |
838 | if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) |
839 | wp_die( -1 ); |
840 | else |
841 | die( '-1' ); |
842 | } |
843 |
|
844 | do_action('check_ajax_referer', $action, $result); |
845 |
|
846 | return $result; |
847 | } |
848 | endif; |
849 |
|
850 | if ( !function_exists('wp_redirect') ) : |
851 | /** |
852 | * Redirects to another page. |
853 | * |