選擇版本
http://windows.php.net/downloads/pecl/releases/pthreads/
在這裡選擇
* Add `pthreadVC2.dll` (included with the Windows releases) to the same directory as `php.exe` eg. `C:\xampp\php`
* Add `php_pthreads.dll` to PHP extention folder eg. `C:\xampp\php\ext`