Create Telegram Logs In Folder With Date

I think that's better to save logs in a separate folder with date on file log name for finding problems when an error occurred.
-Added Folder Logs
-Added Date For Log File Name

Author: sibche2013

TelegramErrorLogger.php

@@ -63,7 +63,11 @@ public static function log($result, $content, $use_rt = true)
     private function _log_to_file($error_text)
     {
         try {
-            $fileName = __CLASS__.'.txt';
+            $dir_name="logs";
+			if (!is_dir($dir_name)) {
+				mkdir($dir_name);
+			}
+            $fileName = $dir_name.'/'.__CLASS__.'-'.date('Y-m-d').'.txt';
             $myFile = fopen($fileName, 'a+');
             $date = '============[Date]============';
             $date .= "\n";