Phork Server Requirements
In order to run Phork you'll need a server running PHP 5. PHP 4 is not supported.
You will most likely need a database unless you just plan to use Phork to route to static pages. Phork/it requires a database. Phork was written and tested using MySQL but can be extended to use any number of SQL databases.
Phork supports caching via one of two Memcache modules, through a Filecache module, or using a database cache. Caching is not required, but in order to support Memcache caching your server must have memcached installed as well as either the PHP Memcache or PHP Memcached modules.
PHP's register globals should be turned off.