&reftitle.constants;

# Memcache Constants

Name | Description
`MEMCACHE_COMPRESSED` (`int`) | Used to turn on-the-fly data compression on with `Memcache::set`, `Memcache::add`&listendand; `Memcache::replace`.
`MEMCACHE_HAVE_SESSION` (`int`) | 1 if this Memcache session handler is available, 0 otherwise.
`MEMCACHE_USER1` (`int`) | Used to turn user-defined application flag on with `Memcache::set`, `Memcache::add`&listendand; `Memcache::replace`.
`MEMCACHE_USER2` (`int`) | Used to turn user-defined application flag on with `Memcache::set`, `Memcache::add`&listendand; `Memcache::replace`.
`MEMCACHE_USER3` (`int`) | Used to turn user-defined application flag on with `Memcache::set`, `Memcache::add`&listendand; `Memcache::replace`.
`MEMCACHE_USER4` (`int`) | Used to turn user-defined application flag on with `Memcache::set`, `Memcache::add`&listendand; `Memcache::replace`.