static function init() { if (!self::$instance) { self::$PLUGIN_URL = plugin_dir_url(__FILE__); self::$PLUGIN_DIR = plugin_dir_path(__FILE__); self::$PLUGIN_FILE = __FILE__; if (did_action('plugins_loaded')) { self::plugin_textdomain(); } else { add_action('plugins_loaded', array(__CLASS__, 'plugin_textdomain')); } self::$instance = new OPcache_dashboard(); } return self::$instance; }