文件权限

extend/echowx/WxProgram.php

@@ -78,10 +78,9 @@ class WxProgram
             return false;
         }
         $res['expires_in'] += time();
-        $fp = fopen(dirname(__FILE__)."/json/access_token.json", "w");
+        $fp = fopen(dirname(__FILE__)."/json/access_token.json", "w",0777);
         fwrite($fp, json_encode($res));
         fclose($fp);
-        chmod(dirname(__FILE__)."/json/access_token.json", 0777);
         return $res;
     }