Cml\dBug::getVariableName PHP Метод

    private function getVariableName()
    {
        $arrBacktrace = debug_backtrace();
        //possible 'included' functions
        $arrInclude = ["include", "include_once", "require", "require_once"];
        //check for any included/required files. if found, get array of the last included file (they contain the right line numbers)
        for ($i = count($arrBacktrace) - 1; $i >= 0; $i--) {
            $arrCurrent = $arrBacktrace[$i];
            if (array_key_exists("function", $arrCurrent) && (in_array($arrCurrent["function"], $arrInclude) || 0 != strcasecmp($arrCurrent["function"], "dbug"))) {
                continue;
            }
            $arrFile = $arrCurrent;
            break;
        }
        if (isset($arrFile)) {
            $arrLines = file($arrFile["file"]);
            $code = $arrLines[$arrFile["line"] - 1];
            //find call to dBug class
            preg_match('/\\bnew dBug\\s*\\(\\s*(.+)\\s*\\);/i', $code, $arrMatches);
            return $arrMatches[1];
        }
        return "";
    }