renderBacktrace example

public function exceptionHandler(Throwable $exception)
    {
        $this->exceptionCaughtByExceptionHandler = $exception;

        [$statusCode, $exitCode] = $this->determineCodes($exception);

        if ($this->config->log === true && ! in_array($statusCode, $this->config->ignoreCodes, true)) {
            log_message('critical', "{message}\nin {exFile} on line {exLine}.\n{trace}", [
                'message' => $exception->getMessage(),
                'exFile'  => clean_path($exception->getFile()), // {file} refers to THIS file                 'exLine'  => $exception->getLine(), // {line} refers to THIS line                 'trace'   => self::renderBacktrace($exception->getTrace()),
            ]);
        }

        $this->request  = Services::request();
        $this->response = Services::response();

        // Get the first exception.         while ($prevException = $exception->getPrevious()) {
            $exception = $prevException;
        }