Add logging example implementation to groupwareserver (#1505)

Co-authored-by: Yannik Sembritzki <yannik.sembritzki@gmail.com>

examples/groupwareserver.php

@@ -49,6 +49,12 @@
 $carddavBackend = new \Sabre\CardDAV\Backend\PDO($pdo);
 $caldavBackend = new \Sabre\CalDAV\Backend\PDO($pdo);
 
+/**
+ * PSR-3 Logging facility.
+ */
+$logger = new \Monolog\Logger('SabreDav');
+$logger->pushHandler(new \Monolog\Handler\RotatingFileHandler(__DIR__.'/sabredav.log', 3, \Monolog\Logger::DEBUG, true, 0600));
+
 /**
  * The directory tree.
  *
@@ -70,6 +76,10 @@
     $server->setBaseUri($baseUri);
 }
 
+// Logging
+$server->setLogger($logger);
+//$server->debugExceptions = true; //enable this to include the stacktrace in exception responses
+
 // Plugins
 $server->addPlugin(new \Sabre\DAV\Auth\Plugin($authBackend));
 $server->addPlugin(new \Sabre\DAV\Browser\Plugin());