update : error_log

src/Log/FileLog.php

@@ -19,7 +19,7 @@ class FileLog
         if ($with_access_log) {
             $log .= ' [request info:] ' . self::accessLog();
         }
-        self::writeInfoLog($log);
+        error_log($log);
     }
 
     /**
@@ -36,7 +36,7 @@ class FileLog
             $exception_info = 'In ' . $exception->getFile() . ' on line ' . $exception->getLine() . ' ' . $exception->getCode() . ': ' . $exception->getMessage();
             $log .= ' [exception info: ]' . $exception_info;
         }
-        self::writeWarningLog($log);
+        error_log($log);
     }
 
     /**