public static function getMustacheInstance() { if (TemplateEngine::$mustacheInstance == NULL) { // $requireFolder = str_replace("app", "libs/Mustache/Autoloader.php", Utils::getUtilsFolder()); require_once 'libs/Mustache/Autoloader.php'; Mustache_Autoloader::register(); TemplateEngine::$mustacheInstance = new Mustache_Engine(); } return TemplateEngine::$mustacheInstance; }