Memcache::decrement

Manual PHP

Memcache::decrement

(no version information, might be only in CVS)

Memcache::decrement -- Decrement item's value

Description

int Memcache::decrement ( string key [, int value])

Memcache::decrement() decrements value of the item by value. Similarly to Memcache::increment(), current value of the item is being converted to numerical and after that value is substracted.

Parameter value is optional. It's default is 1.

Notã: New item's value will not be less than zero.

Notã: Do not use Memcache::decrement() with item, which was stored compressed, because consequent call to Memcache::get() will fail.

Also you can use memcache_decrement() function. See example below.

Exemplu 1. Memcache::decrement() example


<?php

/* procedural API */
$memcache_obj = memcache_connect('memcache_host', 11211);
/* decrement item by 2 */
$new_value = memcache_decrement($memcache_obj, 'test_item', 2);

/* OO API */
$memcache_obj = new Memcache;
$memcache_obj->connect('memcache_host', 11211);
/* decrement item by 3 */
$new_value = $memcache_obj->decrement('test_item', 3);
?>