(PECL memcache >= 0.2.0)
Decrement item's value
int Memcache::decrement ( string $key [, int $value = 1 ] )
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.
Note:
New item's value will not be less than zero.
Note:
Do not use Memcache::decrement() with item, which was stored compressed, because consequent call to Memcache::get() will fail.
Memcache::decrement() does not memcache_decrement()
Parameters:
key
Key of the item do decrement.
value
Decrement the item by value.
Returns:
Returns item's new value on success or FALSE on failure.
Examples:
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);
?>
See also:
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