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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 |
|---|---|
| 1647 | * |
| 1648 | * Allows modification of the link query arguments before querying. |
| 1649 | * |
| 1650 | * @see WP_Query for a full list of arguments |
| 1651 | * |
| 1652 | * @since 3.7.0 |
| 1653 | * |
| 1654 | * @param array $query An array of WP_Query arguments. |
| 1655 | */ |
| 1656 | $query = apply_filters( 'wp_link_query_args', $query ); |
| 1657 | |
| 1658 | // Do main query. |
| 1659 | $get_posts = new WP_Query; |
| 1660 | $posts = $get_posts->query( $query ); |
| 1661 | |
| 1662 | // Build results. |
| 1663 | $results = array(); |
| 1664 | foreach ( $posts as $post ) { |
| 1665 | if ( 'post' == $post->post_type ) { |