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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 |
|---|---|
| 989 | /** |
| 990 | * Filters the query_vars used in get_items() for the constructed query. |
| 991 | * |
| 992 | * The dynamic portion of the hook name, `$key`, refers to the query_var key. |
| 993 | * |
| 994 | * @since 4.7.0 |
| 995 | * |
| 996 | * @param string $value The query_var value. |
| 997 | */ |
| 998 | $query_args[ $key ] = apply_filters( "rest_query_var-{$key}", $value ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores |
| 999 | } |
| 1000 | |
| 1001 | if ( 'post' !== $this->post_type || ! isset( $query_args['ignore_sticky_posts'] ) ) { |
| 1002 | $query_args['ignore_sticky_posts'] = true; |
| 1003 | } |
| 1004 | |
| 1005 | // Map to proper WP_Query orderby param. |
| 1006 | if ( isset( $query_args['orderby'] ) && isset( $request['orderby'] ) ) { |
| 1007 | $orderby_mappings = array( |