PHP Info
Outputs a large amount of information about the current state of PHP. This includes information about PHP compilation options and extensions, the PHP version, server information and environment (if compiled as a module), the PHP environment, OS version information, paths, master and local values of configuration options, HTTP headers, and the PHP License.
PHP Prestashop Info
PhpPsInfo is a PHP script that allows you to test if your current environment fullfills PrestaShop's requirements, and offers suggestions for improvements. This script allows you to quickly test the environement where you want to install PrestaShop. The default credentials for displaying the results are: Login: prestashop Password: prestashop
OPCache
OPcache improves PHP performance by storing precompiled script bytecode in shared memory, thereby removing the need for PHP to load and parse scripts on each request. This extension is bundled with PHP 5.5.0 and later, and is » available in PECL for PHP versions 5.2, 5.3 and 5.4.
MemCached
Memcached is a general-purpose distributed memory-caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source must be read. Memcached is free and open-source software, licensed under the Revised BSD license