public static function instance() { if (!self::$instance) { self::$instance = new self(); } return self::$instance; }
<?php /** * Main mega menu class * * @package Omega * @subpackage Admin * * @copyright (c) 2014 Oxygenna.com * @license **LICENSE** * @version 1.7.3 * @author Oxygenna.com */ define('OXY_MEGA_MENU_DIR', OXY_THEME_DIR . 'vendor/oxygenna/oxygenna-mega-menu/'); define('OXY_MEGA_MENU_URI', OXY_THEME_URI . 'vendor/oxygenna/oxygenna-mega-menu/'); if (!class_exists('OxygennaMegaMenu')) { require_once OXY_MEGA_MENU_DIR . 'inc/OxygennaMegaMenu.php'; require_once OXY_MEGA_MENU_DIR . 'walkers/FrontendBootstrapMegaMenuWalker.php'; OxygennaMegaMenu::instance(); }