ErrorsLoggerListener.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\HttpKernel\EventListener;

use Psr\Log\LoggerInterface;
use Symfony\Component\HttpKernel\Debug\ErrorHandler;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\KernelEvents;

/**
 * Injects the logger into the ErrorHandler, so that it can log various errors.
 *
 * @author Colin Frei <colin@colinfrei.com>
 * @author Konstantin Myakshin <koc-dp@yandex.ru>
 */
class ErrorsLoggerListener implements EventSubscriberInterface {
  private $channel;
  private $logger;
  public function __construct($channel, LoggerInterface $logger = null) {
    $this->channel = $channel;
    $this->logger = $logger;
  }
  public function injectLogger() {
    if (null !== $this->logger) {
      ErrorHandler::setLogger($this->logger, $this->channel);
    }
  }
  public static function getSubscribedEvents() {
    return array(
      KernelEvents::REQUEST => 'injectLogger',
    );
  }

}