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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 |
|---|---|
| 1413 | else |
| 1414 | $scheme = ( is_ssl() ? 'https' : 'http' ); |
| 1415 | } |
| 1416 | |
| 1417 | $url = str_replace( 'http://', "{$scheme}://", get_option('siteurl') ); |
| 1418 | |
| 1419 | if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) |
| 1420 | $url .= '/' . ltrim($path, '/'); |
| 1421 | |
| 1422 | return apply_filters('site_url', $url, $path, $orig_scheme); |
| 1423 | } |
| 1424 | |
| 1425 | /** |
| 1426 | * Retrieve the url to the admin area. |
| 1427 | * |
| 1428 | * @package WordPress |
| 1429 | * @since 2.6.0 |
| 1430 | * |
| 1431 | * @param string $path Optional path relative to the admin url |