diff --git a/app/Http/Controllers/Api/GithubController.php b/app/Http/Controllers/Api/GithubController.php
index ebe69b24..7edc4a5e 100755
--- a/app/Http/Controllers/Api/GithubController.php
+++ b/app/Http/Controllers/Api/GithubController.php
@@ -20,6 +20,11 @@ class GithubController
     
     public $aArticle = [];
     
+    private function rand($iStart, $iEnd)
+    {
+        return rand($iStart, $iEnd);
+    }
+    
     private function echo($sStr, $sMod)
     {
         if (empty($sStr)) {