Memcache::add
PHP function
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(PECL memcache >= 0.2.0)
Add an item to the server
Description
Memcache::add(string $key, mixed $var, [int $flag], [int $expire]): bool
memcache_add(Memcache $memcache, string $key, mixed $var, [int $flag], [int $expire]): bool
Memcache::add() stores variable var with key only if such key doesn't exist at the server yet.
Parameters
keyThe key that will be associated with the item.
varThe variable to store. Strings and integers are stored as is, other types are stored serialized.
flagUse
MEMCACHE_COMPRESSEDto store the item compressed (uses zlib).expireExpiration 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).
Return Values
Success Returns false if such key already exist. For the rest Memcache::add() behaves similarly to Memcache::set().
Examples
Memcache::add() example
php
<?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);
?>