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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 |
|---|---|
| 317 | * |
| 318 | * @param string|array $query WP_Comment_Query arguments. See WP_Comment_Query::__construct() |
| 319 | */ |
| 320 | public function parse_query( $query = '' ) { |
| 321 | if ( empty( $query ) ) { |
| 322 | $query = $this->query_vars; |
| 323 | } |
| 324 | |
| 325 | $this->query_vars = wp_parse_args( $query, $this->query_var_defaults ); |
| 326 | do_action_ref_array( 'parse_comment_query', array( &$this ) ); |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Sets up the WordPress query for retrieving comments. |
| 331 | * |
| 332 | * @since 3.1.0 |
| 333 | * @since 4.1.0 Introduced 'comment__in', 'comment__not_in', 'post_author__in', |
| 334 | * 'post_author__not_in', 'author__in', 'author__not_in', 'post__in', |
| 335 | * 'post__not_in', 'include_unapproved', 'type__in', and 'type__not_in' |