PHP: apcu_dec - Manual (original) (raw)

(PECL apcu >= 4.0.0)

apcu_dec — Decrease a stored number

Description

Decreases a stored integer value.

Parameters

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).

Return Values

Returns the current value of key's value on success, or [false](reserved.constants.php#constant.false) on failure

Examples

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),PHPEOL;vardump(success), PHP_EOL;var_dump(success),PHPE​OL;vard​ump(success);

echo

"Now, let's fail", PHP_EOL, PHP_EOL;apcu_store('astring', 'foo');$ret = apcu_dec('astring', 1, fail);vardump(fail);var_dump(fail);vard​ump(ret);
var_dump($fail);
?>`

The above example will output something similar to:

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

bool(false) bool(false)

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