apcu_inc
PHP function
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(PECL apcu >= 4.0.0)
Increase a stored number
Description
apcu_inc(string $key, int $step = 1, [bool $success], int $ttl = 0): int|false
Increases a stored number.
Parameters
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.
ttlTTL to use if the operation inserts a new value (rather than incrementing an existing one).
Return Values
Returns the current value of key's value on success, Falseforfailure
Examples
apcu_inc() example
php
<?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:
output
Let's do something with success
42
43
53
63
bool(true)
Now, let's fail
bool(false)
bool(false)