apc_inc

(PECL apc >= 3.1.1)

Increase a stored number

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

Increases a stored number.

Parameters:

key

The key of the value being increased.

step

The step, or value to increase.

success

Optionally pass the success or fail boolean value to this referenced variable.

Returns:

Returns the current value of key's value on success, or FALSE on failure

Examples:

apc_inc() example

<?php
echo "Let's do something with success", PHP_EOL;
 
apc_store('anumber', 42);
 
echo apc_fetch('anumber'), PHP_EOL;
 
echo apc_inc('anumber'), PHP_EOL;
echo apc_inc('anumber', 10), PHP_EOL;
echo apc_inc('anumber', 10, $success), PHP_EOL;
 
var_dump($success);
 
echo "Now, let's fail", PHP_EOL, PHP_EOL;
 
apc_store('astring', 'foo');
 
$ret = apc_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)