private static function getCSS(&$css) { $css = ltrim($css, '/'); if ($css = realpath($css)) { self::$root = rtrim($_SERVER['DOCUMENT_ROOT'], '/'); self::$cssDir = dirname($css); self::$webRoot = '/' . trim(str_replace(self::$root, '', self::$cssDir), '/'); return file_get_contents($css); } return false; }