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apcu_dec

(PECL apcu >= 4.0.0)

apcu_decDecrease a stored number

Descripción

apcu_dec ( string $key [, int $step = 1 [, bool &$success ]] ) : int

Decreases a stored integer value.

Parámetros

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).

Valores devueltos

Returns the current value of key's value on success, o FALSE en caso de error

Historial de cambios

Versión Descripción
5.1.12 The ttl parameter has been added.

Ejemplos

Ejemplo #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_EOLPHP_EOL;

apcu_store('astring''foo');

$ret apcu_dec('astring'1$fail);

var_dump($ret);
var_dump($fail);
?>

El resultado del ejemplo sería algo similar a:

Let's do something with success
42
41
31
21
bool(true)
Now, let's fail

bool(false)
bool(false)

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