is_main_network() WordPress Function
The is_main_network() function in WordPress allows you to check if the current site is the main network site. This is useful for network-specific code that only needs to run on the main site.
is_main_network( int $network_id = null ) #
Determine whether a network is the main network of the Multisite installation.
Parameters
- $network_id
(int)(Optional) Network ID to test. Defaults to current network.
Default value: null
Return
(bool) True if $network_id is the main network, or if not running Multisite.
Source
File: wp-includes/functions.php
function is_main_network( $network_id = null ) {
if ( ! is_multisite() ) {
return true;
}
if ( null === $network_id ) {
$network_id = get_current_network_id();
}
$network_id = (int) $network_id;
return ( get_main_network_id() === $network_id );
}
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Changelog
| Version | Description |
|---|---|
| 3.7.0 | Introduced. |