(PECL memcache >= 0.2.0)
Memcache::decrement — 锟斤拷小元锟截碉拷值
$key
[, int $value
= 1
] ) : int
Memcache::decrement()锟斤拷锟斤拷锟斤拷元锟截碉拷值锟斤拷小value
锟斤拷 锟斤拷锟斤拷锟斤拷
Memcache::increment()锟斤拷锟斤拷锟斤拷锟斤拷锟饺斤拷元锟截碉拷前值转锟斤拷锟斤拷锟斤拷值然锟斤拷锟饺�value
锟斤拷
Note:
锟铰碉拷元锟截碉拷值锟斤拷锟斤拷小锟斤拷0锟斤拷
Memcache::decrement()锟斤拷元锟截诧拷锟斤拷锟斤拷时锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 同锟斤拷锟斤拷锟斤拷使锟斤拷memcache_decrement()锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵拷墓锟斤拷锟斤拷锟�Note:
锟斤拷要锟斤拷Memcache::decrement()锟斤拷锟斤拷锟斤拷锟斤拷压锟斤拷锟芥储锟斤拷元锟截o拷锟斤拷锟斤拷锟斤拷锟结导锟斤拷 Memcache::get()锟斤拷锟斤拷锟斤拷取值锟斤拷失锟杰★拷
key
要锟斤拷小值锟斤拷元锟截碉拷key锟斤拷
value
value
锟斤拷锟斤拷指要锟斤拷指锟斤拷元锟截碉拷值锟斤拷小锟斤拷锟劫★拷
锟缴癸拷锟斤拷时锟津返伙拷元锟截碉拷锟斤拷值 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE
Example #1 Memcache::decrement() example
<?php
/* procedural API */
$memcache_obj = memcache_connect('memcache_host', 11211);
/* 锟斤拷test_item锟斤拷应锟斤拷值锟斤拷小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);
?>