(PECL apcu >= 4.0.0)
apcu_dec — Decrease a stored number
$key
, int $step
= 1
, bool &$success
= ?
, int $ttl
= 0
) : int|falseDecreases 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.
ttl
TTL to use if the operation inserts a new value (rather than decrementing an existing one).
Returns the current value of key
's value on success,
sau false
în cazul eșecului
Versiune | Descriere |
---|---|
5.1.12 |
The ttl parameter has been added.
|
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);
?>
Exemplul de mai sus va afișa ceva similar cu:
Let's do something with success 42 41 31 21 bool(true) Now, let's fail bool(false) bool(false)