Hxphp is a project mainly written in ..., it's free.
wrappers for php classes for haxe/php target
hxphp wrappers for php libraries
hxphp.net.Memcache - Supports Memcache objects. Check out the test folder in memcache for examples. You'll need the CVS version of haXe installed or haXe version greater than 2.04.
If you have questions please post to the haXe list.