WordPress at a glance
function is not described

wp_get_active_network_plugins() WP 3.1.0

Returns array of network plugin files to be included in global scope.

The default directory is wp-content/plugins. To change the default directory manually, define WP_PLUGIN_DIR and WP_PLUGIN_URL in wp-config.php.

No Hooks.

Return

Array. Files to include.

Usage

wp_get_active_network_plugins();

Code of wp get active network plugins: wp-includes/ms-load.php VER 5.1.1

<?php
function wp_get_active_network_plugins() {
	$active_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
	if ( empty( $active_plugins ) ) {
		return array();
	}

	$plugins        = array();
	$active_plugins = array_keys( $active_plugins );
	sort( $active_plugins );

	foreach ( $active_plugins as $plugin ) {
		if ( ! validate_file( $plugin ) // $plugin must validate as file
			&& '.php' == substr( $plugin, -4 ) // $plugin must end with '.php'
			&& file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist
			) {
			$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
		}
	}

	return $plugins;
}