(no version information, might be only in CVS)
Memcache::replace -- Replace value of the existing itemMemcache::replace() should be used to replace value of existing item with key. In case if item with such key doesn't exists, Memcache::replace() returns FALSE. For the rest Memcache::replace() behaves similarly to Memcache::set().
Also you can use memcache_replace() function. See example below.
Returns TRUE on success or FALSE on failure.
See also Memcache::set(), Memcache::add().