is_main_network( int $network_id = null ): bool

Parameters

$network_idintoptional

Network ID to test. Defaults to current network.Default: null

Return

bool

True if $network_id is the main network, or if not running Multisite.

Uses · 3

• is_multisite()Determines whether Multisite is enabled.
• get_current_network_id()Retrieves the current network ID.
• get_main_network_id()Gets the main network ID.

Used by · 4

• WP_Automatic_Updater::run()Kicks off the background update process, looping through all pending updates.
• _wp_upload_dir()A non-filtered, non-cached version of wp_upload_dir() that doesn't check the path.
• delete_expired_transients()Deletes all expired transients.
• wp_should_upgrade_global_tables()Determine if global tables should be upgraded.

Source

View on Trac ↗View on GitHub ↗

6493function is_main_network( $network_id = null ) {6494	if ( ! is_multisite() ) {6495		return true;6496	}6497 6498	if ( null === $network_id ) {6499		$network_id = get_current_network_id();6500	}6501 6502	$network_id = (int) $network_id;6503 6504	return ( get_main_network_id() === $network_id );6505}

History

Introduced in 3.7.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

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