php SDK 6.1.11

Question

Fatal error: Class 'Qiniu_HttpClient' not found in E:\web\xampp\htdocs\qiniu\qiniu\io.php on line 93
一直提示这个错误！请问是什么问题？
![curl扩展

Answer 1

http://my.oschina.net/u/151766/blog/287406