Memcached
In Memcached v1.4.5, getResultCode() returns Memcached::RES_DATA_EXISTS if the key is already in use.
Otherwise Memcached::RES_SUCCESS is returned.
Memcached::add
(PECL memcached >= 0.1.0)
Memcached::add — Add an item under a new key
Description
Memcached::add() is similar to Memcached::set(), but the operation fails if the key already exists on the server.
Parameters
- key
-
The key under which to store the value.
- value
-
The value to store.
- expiration
-
The expiration time, defaults to 0. See Expiration Times for more info.
Return Values
Returns TRUE on success or FALSE on failure. The Memcached::getResultCode() will return Memcached::RES_NOTSTORED if the key already exists.
See Also
- Memcached::addByKey() - Add an item under a new key on a specific server
- Memcached::set() - Store an item
- Memcached::replace() - Replace the item under an existing key
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