Decrease a stored number

Descrição

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

Decreases a stored integer value.

Parâmetros

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.

Valor Retornado

Returns the current value of key's value on success, ou FALSE em caso de falha

Exemplos

Exemplo #1 apc_dec() example


<?php
echo "Let's do something with success", PHP_EOL;

apc_store('anumber', 42);

echo apc_fetch('anumber'), PHP_EOL;

echo apc_dec('anumber'), PHP_EOL;
echo apc_dec('anumber', 10), PHP_EOL;
echo apc_dec('anumber', 10, $success), PHP_EOL;

var_dump($success);

echo "Now, let's fail", PHP_EOL, PHP_EOL;

apc_store('astring', 'foo');

$ret = apc_dec('astring', 1, $fail);

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

O exemplo acima irá imprimir algo similar à:

Let's do something with success
42
41
31
21
bool(true)

Now, let's fail
bool(false)
bool(false)

Veja Também

apc_inc() - Increase a stored number