Question

is_main_network( int $network_id = null )

Determine whether a network is the main network of the Multisite install.

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description

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参数

$network_id

(int) (Optional) Network ID to test. Defaults to current network.

Default value: null

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返回值

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

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源代码

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 ( $network_id === get_main_network_id() );
}

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更新日志

Version	description
3.7.0	Introduced.

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相关函数

Uses

• wp-includes/load.php: get_current_network_id()
• wp-includes/functions.php: get_main_network_id()
• wp-includes/load.php: is_multisite()

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Used By

• wp-includes/functions.php: _wp_upload_dir()
• wp-admin/includes/upgrade.php: wp_should_upgrade_global_tables()
• wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::run()
• wp-admin/includes/schema.php: populate_options()
• wp-admin/includes/upgrade.php: upgrade_network()

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User Contributed Notes