log erros into file

src/Response/HttpResponse.php

@@ -1,5 +1,6 @@
 <?php namespace SokoWeb\Response;
 
+use DateTime;
 use ErrorException;
 use Exception;
 use SokoWeb\Interfaces\Response\IRedirect;
@@ -94,6 +95,7 @@ class HttpResponse
             $response = call_user_func([$controller, $handler[1]]);
         } catch (Exception $exception) {
             $this->dbConnection->rollback();
+            $this->writeErrorLog($exception);
             $this->render500($exception);
             return;
         }
@@ -151,4 +153,15 @@ class HttpResponse
         }
         return $url;
     }
+
+    private function writeErrorLog(Exception $exception): void
+    {
+        if (!isset($this->appConfig['errorLogFile'])) {
+            return;
+        }
+
+        $logFileHandler = fopen($this->appConfig['errorLogFile'], 'a');
+        fwrite($logFileHandler, '[' . (new DateTime())->format('c') . '] ' . (string)$exception . PHP_EOL);
+        fclose($logFileHandler);
+    }
 }