Fire http status 500 with Monolog on log level! Usefull when an error occurs.

HttpErrorHandler.php

<?php

/**
 *
 * @author Marco Bunge <mjls@web.de>
 * @copyright 2015 Marco Bunge
 * @license http://opensource.org/licenses/MIT 
 *
 * For the full copyright and license information, please view the LICENSE.txt
 * file that was distributed with this source code.
 *
 */

use Monolog\Handler\AbstractHandler;

class HttpErrorHandler extends AbstractHandler
{

    /**
     * Handles a record.
     *
     * All records may be passed to this method, and the handler should discard
     * those that it does not want to handle.
     *
     * The return value of this function controls the bubbling process of the handler stack.
     * Unless the bubbling is interrupted (by returning true), the Logger class will keep on
     * calling further handlers in the stack with a given log record.
     *
     * @param  array $record The record to handle
     * @return Boolean true means that this handler handled the record, and that bubbling is not permitted.
     *                        false means the record was either not processed or that this handler allows bubbling.
     */
    public function handle(array $record)
    {
        if ($this->getLevel() >= $record['level']) {
            http_response_code(500);
            return false;
        }

        return true;
    }
}