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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 |
|---|---|
| 457 | return; |
| 458 | |
| 459 | $wpdb->queries = array(); |
| 460 | |
| 461 | $comments = array(); |
| 462 | |
| 463 | foreach ( $comment_ids as $comment_id ) { |
| 464 | $comments[ $comment_id ] = get_comment( $comment_id ); |
| 465 | |
| 466 | do_action( 'delete_comment', $comment_id, $comments[ $comment_id ] ); |
| 467 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
| 468 | } |
| 469 | |
| 470 | // Prepared as strings since comment_id is an unsigned BIGINT, and using %d will constrain the value to the maximum signed BIGINT. |
| 471 | $format_string = implode( ', ', array_fill( 0, is_countable( $comment_ids ) ? count( $comment_ids ) : 0, '%s' ) ); |
| 472 | |
| 473 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->comments} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
| 474 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
| 475 | |