Memcached::deleteMultiByKey() is functionally equivalent to Memcached::deleteMulti(), except that the free-form server_key
can be used to map the keys
to a specific server.
The key identifying the server to store the value on or retrieve it from. Instead of hashing on the actual key for the item, we hash on the server key when deciding which memcached server to talk to. This allows related items to be grouped together on a single server for efficiency with multi operations.
The keys to be deleted.
The amount of time the server will wait to delete the items.
Returns TRUE
on success or FALSE
on failure. The Memcached::getResultCode() will return Memcached::RES_NOTFOUND
if the key does not exist.
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