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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 |
|---|---|
| 2111 | |
| 2112 | if ( 'relative' == $scheme ) |
| 2113 | $url = $current_site->path; |
| 2114 | else |
| 2115 | $url = set_url_scheme( 'http://' . $current_site->domain . $current_site->path, $scheme ); |
| 2116 | |
| 2117 | if ( $path && is_string( $path ) ) |
| 2118 | $url .= ltrim( $path, '/' ); |
| 2119 | |
| 2120 | return apply_filters( 'network_site_url', $url, $path, $scheme ); |
| 2121 | } |
| 2122 | |
| 2123 | /** |
| 2124 | * Retrieve the home url for the current network. |
| 2125 | * |
| 2126 | * Returns the home url with the appropriate protocol, 'https' if |
| 2127 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 2128 | * overridden. |
| 2129 | * |