Documentation : Memcached

As always:

yum --enablerepo=remi install php-pecl-memcached
This extension is a alternative, in active development phase, to memcache, extension I used to handle my sessions.

RPM are available in remi repository for Fedora ≥ 11 and EL ≥ 5 to work with PHP 5.3.

RPM are available in remi-test repository for Fedora ≥ 15 and EL ≥ 5 to work with PHP 5.4.

It should be also available soon in Fedora 17 repository, I don't plan any update for Fedora 16.