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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 |
|---|---|
| 2166 | function network_admin_url( $path = '', $scheme = 'admin' ) { |
| 2167 | if ( ! is_multisite() ) |
| 2168 | return admin_url( $path, $scheme ); |
| 2169 | |
| 2170 | $url = network_site_url('wp-admin/network/', $scheme); |
| 2171 | |
| 2172 | if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) |
| 2173 | $url .= ltrim($path, '/'); |
| 2174 | |
| 2175 | return apply_filters('network_admin_url', $url, $path); |
| 2176 | } |
| 2177 | |
| 2178 | /** |
| 2179 | * Retrieve the url to the admin area for the current user. |
| 2180 | * |
| 2181 | * @package WordPress |
| 2182 | * @since 3.0.0 |
| 2183 | * |
| 2184 | * @param string $path Optional path relative to the admin url. |