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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 |
|---|---|
| 2053 | $url = get_option( 'siteurl' ); |
| 2054 | restore_current_blog(); |
| 2055 | } |
| 2056 | |
| 2057 | $url = set_url_scheme( $url, $scheme ); |
| 2058 | |
| 2059 | if ( $path && is_string( $path ) ) |
| 2060 | $url .= '/' . ltrim( $path, '/' ); |
| 2061 | |
| 2062 | return apply_filters( 'site_url', $url, $path, $scheme, $blog_id ); |
| 2063 | } |
| 2064 | |
| 2065 | /** |
| 2066 | * Retrieve the url to the admin area for the current site. |
| 2067 | * |
| 2068 | * @package WordPress |
| 2069 | * @since 2.6.0 |
| 2070 | * |
| 2071 | * @param string $path Optional path relative to the admin url. |