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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 |
|---|---|
| 1389 | * Filters the HTML output of a page-based menu. |
| 1390 | * |
| 1391 | * @since 2.7.0 |
| 1392 | * |
| 1393 | * @see wp_page_menu() |
| 1394 | * |
| 1395 | * @param string $menu The HTML output. |
| 1396 | * @param array $args An array of arguments. |
| 1397 | */ |
| 1398 | $menu = apply_filters( 'wp_page_menu', $menu, $args ); |
| 1399 | if ( $args['echo'] ) |
| 1400 | echo $menu; |
| 1401 | else |
| 1402 | return $menu; |
| 1403 | } |
| 1404 | |
| 1405 | // |
| 1406 | // Page helpers |
| 1407 | // |