PHP Dokumentation: Function memcache-add
12. Januar 2010 von werner
Memcache::add
(PECL memcache >= 0.2.0)
Memcache::add — Add an item to the server
Beschreibung
Memcache::add() stores variable var with key only if such key doesn't exist at the server yet. Also you can use memcache_add() function.
Parameter-Liste
- key
The key that will be associated with the item.
- var
The variable to store. Strings and integers are stored as is, other types are stored serialized.
- flag
Use MEMCACHE_COMPRESSED to store the item compressed (uses zlib).
- expire
Expiration time of the item. If it's equal to zero, the item will never expire. You can also use Unix timestamp or a number of seconds starting from current time, but in the latter case the number of seconds may not exceed 2592000 (30 days).
Rückgabewerte
Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben. Returns FALSE if such key already exist. For the rest Memcache::add() behaves similarly to Memcache::set().
Beispiele
Beispiel #1 Memcache::add() example
<?php$memcache_obj
= memcache_connect("localhost", 11211);/* procedural API */
memcache_add($memcache_obj, 'var_key', 'test variable', false, 30);/* OO API */
$memcache_obj->add('var_key', 'test variable', false, 30);?>Siehe auch
- Memcache::set() – Store data at the server
- Memcache::replace() – Replace value of the existing item
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