get_main_site_id( int $network_id = null )

Gets the main site ID.


Parameters Parameters

$network_id

(int) (Optional) The ID of the network for which to get the main site. Defaults to the current network.

Default value: null


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Return Return

(int) The ID of the main site.


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Source Source

File: wp-includes/functions.php

function get_main_site_id( $network_id = null ) {
	if ( ! is_multisite() ) {
		return get_current_blog_id();
	}

	$network = get_network( $network_id );
	if ( ! $network ) {
		return 0;
	}

	return $network->site_id;
}


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Changelog Changelog

Changelog
Version Description
4.9.0 Introduced.

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