php 한글 메뉴얼 도움말 검색 사이트 Compares the variable with old value and assigns new value to it [function.wincache-ucache-cas]

bool wincache_ucache_cas ( string $key , int $old_value , int $new_value )

Compares the variable associated with the key with old_value and if it matches then assigns the new_value to it.

key: The key that is used to store the variable in the cache. key is case sensitive.
old_value: Old value of the variable pointed by key in the user cache. The value should be of type long, otherwise the function returns FALSE.
new_value: New value which will get assigned to variable pointer by key if a match is found. The value should be of type long, otherwise the function returns FALSE.

성공 시 TRUE를, 실패 시 FALSE를 반환합니다.

Example #1 Using wincache_ucache_cas()


<?php
wincache_ucache_set('counter', 2922);
var_dump(wincache_ucache_cas('counter', 2922, 1));
var_dump(wincache_ucache_get('counter'));
?>

위 예제의 출력:

bool(true) 
int(1)