WP_Network::get_instance() – Retrieve a network from the database by its ID.

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Description

Retrieves a network from the database by its ID.

Usage

$WP_Network|false = WP_Network::get_instance( $network_id );

Parameters

$network_id
( int ) required – The ID of the network to retrieve.

Returns

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

Source

File name: wordpress/wp-includes/class-wp-network.php
Lines:

1 to 26 of 26
  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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