Memcache
PHP Manual

Memcache::add

Add an item to the server

Description

bool Memcache::add ( string $key , mixed $var [, int $flag [, int $expire ]] )

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.

Parameters

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).

Return Values

Returns TRUE on success or FALSE on failure. Returns FALSE if such key already exist. For the rest Memcache::add behaves similarly to Memcache::set.

Examples

Example #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);

?>

See Also

  • Memcache::set
  • Memcache::replace