apcu_dec

(PECL apcu >= 4.0.0)

apcu_decDecrease a stored number

설명

int apcu_dec ( string $key [, int $step = 1 [, bool &$success ]] )

Decreases a stored integer value.

인수

key

The key of the value being decreased.

step

The step, or value to decrease.

success

Optionally pass the success or fail boolean value to this referenced variable.

반환값

Returns the current value of key's value on success, 실패 시 FALSE를 반환합니다

예제

Example #1 apcu_dec() example

<?php
echo "Let's do something with success"PHP_EOL;

apcu_store('anumber'42);

echo 
apcu_fetch('anumber'), PHP_EOL;

echo 
apcu_dec('anumber'), PHP_EOL;
echo 
apcu_dec('anumber'10), PHP_EOL;
echo 
apcu_dec('anumber'10$success), PHP_EOL;

var_dump($success);

echo 
"Now, let's fail"PHP_EOLPHP_EOL;

apcu_store('astring''foo');

$ret apcu_dec('astring'1$fail);

var_dump($ret);
var_dump($fail);
?>

위 예제의 출력 예시:

Let's do something with success
42
41
31
21
bool(true)

Now, let's fail
bool(false)
bool(false)

참고

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