Memcache::increment

(PECL memcache:0.2-2.1.2)

Memcache::increment — Increment item's value

说明

int Memcache::increment ( string $key [, int $value ] )

Memcache::increment() increments value of the item on the specified value . If item with key key was not numeric and cannot be converted to number, it will change it's value to value . Memcache::increment() does not create an item if it didn't exist.

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

Also you can use memcache_increment() function.

参数

key: Key of the item to increment.
value: Increment the item by value . Optional and defaults to 1.

返回值

Returns new item's value on success or FALSE on failure.

范例

Example#1 Memcache::increment() example


<?php

/* procedural API */
$memcache_obj = memcache_connect('memcache_host', 11211);
/* increment counter by 2 */
$current_value = memcache_increment($memcache_obj, 'counter', 2);

/* OO API */
$memcache_obj = new Memcache;
$memcache_obj->connect('memcache_host', 11211);
/* increment counter by 3 */
$current_value = $memcache_obj->increment('counter', 3);

?>

参见

Memcache::decrement()
Memcache::replace()


	PHP5中文手册 Memcache::getVersion Memcache::pconnect Memcache PHP Manual Memcache::increment (PECL memcache:0.2-2.1.2) Memcache::increment — Increment item's value 说明 int Memcache::increment ( string `$key` [, int `$value` ] ) Memcache::increment() increments value of the item on the specified `value` . If item with key `key` was not numeric and cannot be converted to number, it will change it's value to `value` . Memcache::increment() does not create an item if it didn't exist. Note: Do not use Memcache::increment() with item, which was stored compressed, because consequent call to Memcache::get() will fail. Also you can use memcache_increment() function. 参数 `key` Key of the item to increment. `value` Increment the item by `value` . Optional and defaults to 1. 返回值 Returns new item's value on success or `FALSE` on failure. 范例 Example#1 Memcache::increment() example `<?php /* procedural API / $memcache_obj = memcache_connect('memcache_host', 11211); / increment counter by 2 / $current_value = memcache_increment($memcache_obj, 'counter', 2); / OO API / $memcache_obj = new Memcache; $memcache_obj->connect('memcache_host', 11211); / increment counter by 3 / $current_value = $memcache_obj->increment('counter', 3); ?>` 参见 Memcache::decrement()* Memcache::replace() Memcache::getVersion Memcache::pconnect Memcache PHP Manual