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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 |
|---|---|
| 2229 | |
| 2230 | if ( 'relative' == $scheme ) |
| 2231 | $url = $current_site->path; |
| 2232 | else |
| 2233 | $url = set_url_scheme( 'http://' . $current_site->domain . $current_site->path, $scheme ); |
| 2234 | |
| 2235 | if ( $path && is_string( $path ) ) |
| 2236 | $url .= ltrim( $path, '/' ); |
| 2237 | |
| 2238 | return apply_filters( 'network_home_url', $url, $path, $orig_scheme); |
| 2239 | } |
| 2240 | |
| 2241 | /** |
| 2242 | * Retrieve the url to the admin area for the network. |
| 2243 | * |
| 2244 | * @package WordPress |
| 2245 | * @since 3.0.0 |
| 2246 | * |
| 2247 | * @param string $path Optional path relative to the admin url. |