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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 |
|---|---|
| 1304 | * |
| 1305 | * Allows modification of the link query arguments before querying. |
| 1306 | * |
| 1307 | * @see WP_Query for a full list of arguments |
| 1308 | * |
| 1309 | * @since 3.7.0 |
| 1310 | * |
| 1311 | * @param array $query An array of WP_Query arguments. |
| 1312 | */ |
| 1313 | $query = apply_filters( 'wp_link_query_args', $query ); |
| 1314 | |
| 1315 | // Do main query. |
| 1316 | $get_posts = new WP_Query; |
| 1317 | $posts = $get_posts->query( $query ); |
| 1318 | // Check if any posts were found. |
| 1319 | if ( ! $get_posts->post_count ) |
| 1320 | return false; |
| 1321 | |
| 1322 | // Build results. |