silverstripe-framework/Logging/MonologErrorHandler.php

<?php

namespace SilverStripe\Logging;

use Psr\Log\LoggerInterface;
use Monolog\ErrorHandler;

/**
 * Simple adaptor to start Monolog\ErrorHandler
 */
class MonologErrorHandler
{
	private $logger;

	/**
	 * Set the PSR-3 logger to send errors & exceptions to
	 */
	function setLogger(LoggerInterface $logger) {
		$this->logger = $logger;
	}

	function start() {
		if(!$this->logger) {
			throw new \InvalidArgumentException("No Logger property passed to MonologErrorHandler."
				. "Is your Injector config correct?");
		}

		ErrorHandler::register($this->logger);
	}
}