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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 |
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647 |
|
648 | if ( $dupe_id ) { |
649 | /** |
650 | * Fires immediately after a duplicate comment is detected. |
651 | * |
652 | * @since 3.0.0 |
653 | * |
654 | * @param array $commentdata Comment data. |
655 | */ |
656 | do_action( 'comment_duplicate_trigger', $commentdata ); |
657 | if ( true === $avoid_die ) { |
658 | return new WP_Error( 'comment_duplicate', __( 'Duplicate comment detected; it looks as though you’ve already said that!' ), 409 ); |
659 | } else { |
660 | if ( wp_doing_ajax() ) { |
661 | die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); |
662 | } |
663 |
|
664 | wp_die( __( 'Duplicate comment detected; it looks as though you’ve already said that!' ), 409 ); |
665 | } |