mimmi20/monolog-callbackfilterhandler

<?php declare(strict_types=1);
/**
 * This basic example will :
 * - log all events to a file called "my_logger.log"
 * - notify only (fake) error that have a 'exception' contextual data by mail
 * - WARNING: for demo, the NativeMailerHandler was replaced by a StreamHandler
 *
 * @author   Laurent Laville <pear@laurent-laville.org>
 * @license  http://www.opensource.org/licenses/bsd-license.php BSD License
 * @since    Example available since Release 1.0.0
 */

require_once dirname(__DIR__) . '/vendor/autoload.php';

use Mimmi20\Monolog\Handler\CallbackFilterHandler;

use Monolog\Level;
use Monolog\Logger;
use Monolog\Handler\RotatingFileHandler;
use Monolog\Handler\NativeMailerHandler;
use Monolog\Handler\StreamHandler;
use Monolog\LogRecord;

// Create the logger
$logger = new Logger('my_logger');

// Create filter rules
$filters = [
    static function (LogRecord $record): bool {
        if (!array_key_exists('exception', $record->context)) {
            return false;
        }
        return (preg_match('/fake error/', $record->message) === 1);
    }
];

// Create some handlers
$stream = new RotatingFileHandler(__DIR__ . DIRECTORY_SEPARATOR . 'my_logger.log');
$stream->setFilenameFormat('{filename}-{date}', 'Ymd');

//$mailer = new NativeMailerHandler('user@example.org', 'dear user', 'receiver@example.org');
$mailer = new StreamHandler(__DIR__ . DIRECTORY_SEPARATOR . 'notifications.log', Level::Error);

// add handlers to the logger
$logger->pushHandler($stream);
$logger->pushHandler(new CallbackFilterHandler($mailer, $filters));

// You can now use your logger
$logger->info('My logger is now ready');

$logger->error('A fake error has occurred. Will be logged to file BUT NOT notified by mail.');

try {
    throw new RuntimeException();
} catch (Exception $e) {
    $logger->critical(
        'A fake error has occurred. Will be logged to file AND notified by mail.',
        ['exception' => (string) $e]
    );
}