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WP_Network::get_instance()

WP_Network::get_instance( int $network_id ): WP_Network|false

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Retrieves a network from the database by its ID.

Parameters

$network_idintrequired
The ID of the network to retrieve.

Return

WP_Network|false The network’s object if found. False if not.

Source

public static function get_instance( $network_id ) {	global $wpdb;	$network_id = (int) $network_id;	if ( ! $network_id ) {	return false;	}	$_network = wp_cache_get( $network_id, 'networks' );	if ( false === $_network ) {	$_network = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->site} WHERE id = %d LIMIT 1", $network_id ) );	if ( empty( $_network ) || is_wp_error( $_network ) ) {	$_network = -1;	}	wp_cache_add( $network_id, $_network, 'networks' );	}	if ( is_numeric( $_network ) ) {	return false;	}	return new WP_Network( $_network ); }

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UsesDescription
WP_Network::__construct()wp-includes/class-wp-network.php

Creates a new WP_Network object.

wp_cache_add()wp-includes/cache.php

Adds data to the cache, if the cache key doesn’t already exist.

wpdb::get_row()wp-includes/class-wpdb.php

Retrieves one row from the database.

wp_cache_get()wp-includes/cache.php

Retrieves the cache contents from the cache by key and group.

wpdb::prepare()wp-includes/class-wpdb.php

Prepares a SQL query for safe execution.

is_wp_error()wp-includes/load.php

Checks whether the given variable is a WordPress Error.

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Used byDescription
get_network()wp-includes/ms-network.php

Retrieves network data given a network ID or network object.

ms_load_current_site_and_network()wp-includes/ms-load.php

Identifies the network and site of a requested domain and path and populates the corresponding network and site global objects as part of the multisite bootstrap process.

Changelog

VersionDescription
4.4.0Introduced.

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