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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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425 | * @since 5.3.0 |
426 | * @since 5.6.0 The returned array of comment data is assigned to the `comments` property |
427 | * of the current WP_Comment_Query instance. |
428 | * |
429 | * @param array|int|null $comment_data Return an array of comment data to short-circuit WP's comment query, |
430 | * the comment count as an integer if `$this->query_vars['count']` is set, |
431 | * or null to allow WP to run its normal queries. |
432 | * @param WP_Comment_Query $query The WP_Comment_Query instance, passed by reference. |
433 | */ |
434 | $comment_data = apply_filters_ref_array( 'comments_pre_query', array( $comment_data, &$this ) ); |
435 |
|
436 | if ( null !== $comment_data ) { |
437 | if ( is_array( $comment_data ) && ! $this->query_vars['count'] ) { |
438 | $this->comments = $comment_data; |
439 | } |
440 |
|
441 | return $comment_data; |
442 | } |
443 |
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