(PECL memcached >= 0.1.0)
Memcached::increment — Increment numeric item's value
$key
[, int $offset = 1
] )
Memcached::increment() increments a numeric item's value
by the specified offset. If the item's value is not
numeric, it is treated as if the value were 0.
Memcached::increment() will fail if the item does not
exist.
keyThe key of the item to increment.
offsetThe amount by which to increment the item's value.
Returns new item's value on success or FALSE on failure.
The Memcached::getResultCode() will return
Memcached::RES_NOTFOUND if the key does not exist.
Example #1 Memcached::increment() example
<?php
$m = new Memcached();
$m->addServer('localhost', 11211);
$m->set('counter', 0);
$m->increment('counter');
$m->increment('counter', 10);
var_dump($m->get('counter'));
$m->set('key', 'abc');
$m->increment('counter');
?>
The above example will output:
int(11) string(1) "1"