February 12, 2011 
Definition:
function network_home_url( $path = '', $scheme = null ) {}
Retrieve the home url for the current network.
Returns the home url with the appropriate protocol, ‘https’ if is_ssl() and ‘http’ otherwise. If $scheme is ‘http’ or ‘https’, is_ssl() is overridden.
Parameters
- string $path: (optional) Path relative to the home url.
- string $scheme: (optional) Scheme to give the home url context. Currently ‘http’, ‘https’.
Return values
returns:Home url link with optional path appended.
Defined filters
- network_home_url
apply_filters( 'network_home_url', $url, $path, $orig_scheme)
Source code
function network_home_url( $path = '', $scheme = null ) {
global $current_site;
if ( !is_multisite() )
return home_url($path, $scheme);
$orig_scheme = $scheme;
if ( !in_array($scheme, array('http', 'https')) )
$scheme = is_ssl() && !is_admin() ? 'https' : 'http';
$url = $scheme . '://' . $current_site->domain . $current_site->path;
if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false )
$url .= ltrim( $path, '/' );
return apply_filters( 'network_home_url', $url, $path, $orig_scheme);
}
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