(PECL apcu >= 4.0.0)
apcu_dec — Decrease a stored number
$key
[, int $step
= 1
[, bool &$success
]] )Decreases a stored integer value.
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.
Returns the current value of key
's value on success,
або FALSE
в разі помилки
Приклад #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_EOL, PHP_EOL;
apcu_store('astring', 'foo');
$ret = apcu_dec('astring', 1, $fail);
var_dump($ret);
var_dump($fail);
?>
Наведений вище приклад виведе щось подібне до:
Let's do something with success 42 41 31 21 bool(true) Now, let's fail bool(false) bool(false)