Memcached::get

(PECL memcached >= 0.1.0)

Memcached::get — Retrieve an item

Description

public mixed Memcached::get ( string $key [, callable $cache_cb [, int $$flags ]] )

Memcached::get() returns the item that was previously stored under the key. If the item is found and for flags is given Memcached::GET_EXTENDED, it will return the CAS token value for the item. See Memcached::cas() for how to use CAS tokens. Read-through caching callback may be specified via cache_cb parameter.

Parameters

key

The key of the item to retrieve.

cache_cb

Read-through caching callback or NULL.

flags

Flags to control the returned result. When value of Memcached::GET_EXTENDED is given will return the CAS token.

Return Values

Returns the value stored in the cache or FALSE otherwise. The Memcached::getResultCode() will return Memcached::RES_NOTFOUND if the key does not exist.

Examples

Example #1 Memcached::get() example #1

<?php
$m?=?new?Memcached();
$m->addServer('localhost',?11211);

$m->set('foo',?100);
var_dump($m->get('foo'));
?>

The above example will output:

int(100)

Example #2 Memcached::get() example #2

<?php
$m?=?new?Memcached();
$m->addServer('localhost',?11211);

if?(!($ip?=?$m->get('ip_block')))?{
????if?($m->getResultCode()?==?Memcached::RES_NOTFOUND)?{
????????$ip?=?array();
????????$m->set('ip_block',?$ip);
????}?else?{
????????/*?log?error?*/
????????/*?...???????*/
????}
}
?>

Changelog

Version	Description
3.0.0	The &cas_token parameter was removed. Instead flags was added and when it is given the value of Memcached::GET_EXTENDED it will ensure the CAS token to be fetched.

Description

Parameters

Return Values

Examples

Changelog

See Also