Symfony\Component\Console\Application::renderException PHP Method

    public function renderException(\Exception $e, OutputInterface $output)
    {
        $output->writeln('', OutputInterface::VERBOSITY_QUIET);
        do {
            $title = sprintf('  [%s%s]  ', get_class($e), $output->isVerbose() && 0 !== ($code = $e->getCode()) ? ' (' . $code . ')' : '');
            $len = $this->stringWidth($title);
            $width = $this->terminal->getWidth() ? $this->terminal->getWidth() - 1 : PHP_INT_MAX;
            // HHVM only accepts 32 bits integer in str_split, even when PHP_INT_MAX is a 64 bit integer: https://github.com/facebook/hhvm/issues/1327
            if (defined('HHVM_VERSION') && $width > 1 << 31) {
                $width = 1 << 31;
            }
            $formatter = $output->getFormatter();
            $lines = array();
            foreach (preg_split('/\\r?\\n/', $e->getMessage()) as $line) {
                foreach ($this->splitStringByWidth($line, $width - 4) as $line) {
                    // pre-format lines to get the right string length
                    $lineLength = $this->stringWidth(preg_replace('/\\[[^m]*m/', '', $formatter->format($line))) + 4;
                    $lines[] = array($line, $lineLength);
                    $len = max($lineLength, $len);
                }
            }
            $messages = array();
            $messages[] = $emptyLine = $formatter->format(sprintf('<error>%s</error>', str_repeat(' ', $len)));
            $messages[] = $formatter->format(sprintf('<error>%s%s</error>', $title, str_repeat(' ', max(0, $len - $this->stringWidth($title)))));
            foreach ($lines as $line) {
                $messages[] = $formatter->format(sprintf('<error>  %s  %s</error>', $line[0], str_repeat(' ', $len - $line[1])));
            }
            $messages[] = $emptyLine;
            $messages[] = '';
            $output->writeln($messages, OutputInterface::OUTPUT_RAW | OutputInterface::VERBOSITY_QUIET);
            if (OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) {
                $output->writeln('<comment>Exception trace:</comment>', OutputInterface::VERBOSITY_QUIET);
                // exception related properties
                $trace = $e->getTrace();
                array_unshift($trace, array('function' => '', 'file' => $e->getFile() !== null ? $e->getFile() : 'n/a', 'line' => $e->getLine() !== null ? $e->getLine() : 'n/a', 'args' => array()));
                for ($i = 0, $count = count($trace); $i < $count; ++$i) {
                    $class = isset($trace[$i]['class']) ? $trace[$i]['class'] : '';
                    $type = isset($trace[$i]['type']) ? $trace[$i]['type'] : '';
                    $function = $trace[$i]['function'];
                    $file = isset($trace[$i]['file']) ? $trace[$i]['file'] : 'n/a';
                    $line = isset($trace[$i]['line']) ? $trace[$i]['line'] : 'n/a';
                    $output->writeln(sprintf(' %s%s%s() at <info>%s:%s</info>', $class, $type, $function, $file, $line), OutputInterface::VERBOSITY_QUIET);
                }
                $output->writeln('', OutputInterface::VERBOSITY_QUIET);
            }
        } while ($e = $e->getPrevious());
        if (null !== $this->runningCommand) {
            $output->writeln(sprintf('<info>%s</info>', sprintf($this->runningCommand->getSynopsis(), $this->getName())), OutputInterface::VERBOSITY_QUIET);
            $output->writeln('', OutputInterface::VERBOSITY_QUIET);
        }
    }

 /**
  * Renders a caught exception.
  *
  * @param \Exception      $e      An exception instance
  * @param OutputInterface $output An OutputInterface instance
  */
 public function renderException($e, $output = null)
 {
     if (!$output) {
         $output = $this->output;
         if ($output instanceof ConsoleOutputInterface) {
             $output = $output->getErrorOutput();
         }
     }
     return parent::renderException($e, $output);
 }