Memcache (PEAR)
Memcache is a PEAR Module
Memcache is a PHP Extension and Application Repository (PEAR) module that provides an "abstraction layer" (otherwise known as a set of library calls) to memcached, a highly effective caching daemon. Memcached enables access to memcached facilities via either procedural or object-oriented notation.
This means that, once the Memcache PEAR module has been installed and properly configured, PHP programs can access and take advantage of the power of memcached using Application Programming Interface (API) calls from within the PHP programming environment using the Memcache PEAR API.