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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 |
---|---|
877 | */ |
878 | function wp_delete_comment($comment_id, $force_delete = false) { |
879 | global $wpdb; |
880 | if (!$comment = get_comment($comment_id)) |
881 | return false; |
882 |
|
883 | if ( !$force_delete && EMPTY_TRASH_DAYS && !in_array( wp_get_comment_status($comment_id), array( 'trash', 'spam' ) ) ) |
884 | return wp_trash_comment($comment_id); |
885 |
|
886 | do_action('delete_comment', $comment_id); |
887 |
|
888 | // Move children up a level. |
889 | $children = $wpdb->get_col( $wpdb->prepare("SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment_id) ); |
890 | if ( !empty($children) ) { |
891 | $wpdb->update($wpdb->comments, array('comment_parent' => $comment->comment_parent), array('comment_parent' => $comment_id)); |
892 | clean_comment_cache($children); |
893 | } |
894 |
|
895 | // Delete metadata |