Installation of PECL extensions
PHP Manual

PECL for Windows users

As with any other PHP extension DLL, installation is as simple as copying the PECL extension DLLs into the extension_dir folder and loading them from php.ini. For example, add the following line to your php.ini:

extension=php_extname.dll
   

After doing this, restart the web service.


Installation of PECL extensions
PHP Manual