protected function init() { parent::init(); if (!extension_loaded('XCache')) { throw new waException("XCache module not loaded"); } if (version_compare(phpversion("XCache"), "3.1.0", "<")) { throw new waException("XCache version 3.1.0 or newer required"); } if (!isset($this->options["prefix"])) { throw new waException("Prefix for XCache is not set"); } }