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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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422 | $comments = $wpdb->get_results( $query ); |
423 | /** |
424 | * Filter the comment query results. |
425 | * |
426 | * @since 3.1.0 |
427 | * |
428 | * @param array $comments An array of comments. |
429 | * @param WP_Comment_Query &$this Current instance of WP_Comment_Query, passed by reference. |
430 | */ |
431 | $comments = apply_filters_ref_array( 'the_comments', array( $comments, &$this ) ); |
432 |
|
433 | wp_cache_add( $cache_key, $comments, 'comment' ); |
434 |
|
435 | return $comments; |
436 | } |
437 |
|
438 | /** |
439 | * Used internally to generate an SQL string for searching across multiple columns |
440 | * |