PHP Dokumentation: Function memcache-replace
12. Januar 2010 von werner
Memcache::replace
(PECL memcache >= 0.2.0)
Memcache::replace — Replace value of the existing item
Beschreibung
Memcache::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.
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.
Beispiele
Beispiel #1 Memcache::replace() example
<?php$memcache_obj
= memcache_connect('memcache_host', 11211);/* procedural API */
memcache_replace($memcache_obj, "test_key", "some variable", false, 30);/* OO API */
$memcache_obj->replace("test_key", "some variable", false, 30);?>Siehe auch
- Memcache::set() – Store data at the server
- Memcache::add() – Add an item to the server
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