Alternative PHP Cache (APC)
Alternative PHP Cache (APC) is a free open source framework that heavily optimizes and tunes the output of the PHP bytecode compiler and stores the final. APC is an opcode cache that can significantly speed up your PHP aplications, by caching both PHP code and user variables. Adding APC to an application usually results in improved application response times, reduced server load and happier users.
– wikipedia, http://en.wikipedia.org/wiki/List_of_PHP_accelerators#Alternative_PHP_Cache_.28APC.29
Use in XAMPP (PHP 5.3.1 version, Apache/2.2.14 (Win 32)
open php.ini file. then find extension=php_apc.dll, remove “;” to activate, restart your apache server