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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 |
|---|---|
| 2224 | function network_admin_url( $path = '', $scheme = 'admin' ) { |
| 2225 | if ( ! is_multisite() ) |
| 2226 | return admin_url( $path, $scheme ); |
| 2227 | |
| 2228 | $url = network_site_url('wp-admin/network/', $scheme); |
| 2229 | |
| 2230 | if ( $path && is_string( $path ) ) |
| 2231 | $url .= ltrim($path, '/'); |
| 2232 | |
| 2233 | return apply_filters('network_admin_url', $url, $path); |
| 2234 | } |
| 2235 | |
| 2236 | /** |
| 2237 | * Retrieve the url to the admin area for the current user. |
| 2238 | * |
| 2239 | * @package WordPress |
| 2240 | * @since 3.0.0 |
| 2241 | * |
| 2242 | * @param string $path Optional path relative to the admin url. |