(PECL apcu >= 4.0.0)
apcu_dec — Decrease a stored number
$key
[, int $step = 1
[, bool &$success
]] ) : intDecreases a stored integer value.
keyThe key of the value being decreased.
stepThe step, or value to decrease.
successOptionally pass the success or fail boolean value to this referenced variable.
Returns the current value of key's value on success,
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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_EOL, PHP_EOL;
apcu_store('astring', 'foo');
$ret = apcu_dec('astring', 1, $fail);
var_dump($ret);
var_dump($fail);
?>
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Let's do something with success 42 41 31 21 bool(true) Now, let's fail bool(false) bool(false)