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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 |
|---|---|
| 1589 | * |
| 1590 | * Allows modification of the link query arguments before querying. |
| 1591 | * |
| 1592 | * @see WP_Query for a full list of arguments |
| 1593 | * |
| 1594 | * @since 3.7.0 |
| 1595 | * |
| 1596 | * @param array $query An array of WP_Query arguments. |
| 1597 | */ |
| 1598 | $query = apply_filters( 'wp_link_query_args', $query ); |
| 1599 | |
| 1600 | // Do main query. |
| 1601 | $get_posts = new WP_Query; |
| 1602 | $posts = $get_posts->query( $query ); |
| 1603 | // Check if any posts were found. |
| 1604 | if ( ! $get_posts->post_count ) |
| 1605 | return false; |
| 1606 | |
| 1607 | // Build results. |