====== PHP Accelerator ======
  * [[https://en.wikipedia.org/wiki/PHP_accelerator|PHP accelerator]]
  * [[https://en.wikipedia.org/wiki/List_of_PHP_accelerators|List of PHP accelerators]]
  * [[https://github.com/zendtech/ZendOptimizerPlus|ZendOptimizer+]]
  * [[http://xcache.lighttpd.net/|XCache]]
  * [[http://php.net/manual/en/book.apc.php|PHP: APC]] - discontinued
  * [[http://eaccelerator.net/|eAccelerator]] - discontinued