CascadiaPHP 2024


(PECL memcache >= 0.2.0)

Memcache::decrementDecrement item's value


Memcache::decrement(string $key, int $value = 1): int|false

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 subtracted.


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


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

Memcache::decrement() does not create an item if it didn't exist. Also you can use memcache_decrement() function.

Bağımsız Değişkenler


Key of the item do decrement.


Decrement the item by value.

Dönen Değerler

Returns item's new value on success başarısızlık durumunda false döner.


Örnek 1 Memcache::decrement() example


/* 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);

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