(PECL apcu >= 4.0.0)
apcu_inc — Increase a stored number
$key
[, int $step = 1
[, bool &$success
]] )Increases a stored number.
keyThe key of the value being increased.
stepThe step, or value to increase.
successOptionally pass the success or fail boolean value to this referenced variable.
Returns the current value of key's value on success,
or FALSE on failure
Example #1 apcu_inc() example
<?php
echo "Let's do something with success", PHP_EOL;
apcu_store('anumber', 42);
echo apcu_fetch('anumber'), PHP_EOL;
echo apcu_inc('anumber'), PHP_EOL;
echo apcu_inc('anumber', 10), PHP_EOL;
echo apcu_inc('anumber', 10, $success), PHP_EOL;
var_dump($success);
echo "Now, let's fail", PHP_EOL, PHP_EOL;
apcu_store('astring', 'foo');
$ret = apcu_inc('astring', 1, $fail);
var_dump($ret);
var_dump($fail);
?>
The above example will output something similar to:
42 43 53 63 bool(true) Now, let's fail bool(false) bool(false)