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Last updated: Sat, 27 Jan 2007

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# Memcache::increment

(no version information, might be only in CVS)

Memcache::increment -- Increment item's value

## Описание

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.

> Замечание: 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.

## Список параметров

`key`

  Key of the item to increment.

`value`

  Increment the item by `value`. Optional and defaults to 1.

## Возвращаемые значения

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

## Примеры

Пример 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);
?>`

## Смотрите также

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

add a note User Contributed Notes
Memcache::increment
15-Jun-2005 12:54
`if no variable exists, even if you specify an increment value, the result will be null.
if you're using this for a mutex, chk if its null, and if so, then ADD the variable.`
add a note
Memcache::pconnect Memcache::getVersion

Last updated: Sat, 27 Jan 2007
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