Memcached::getMulti
Memcached::getMulti
(PECL memcached >= 0.1.0)
Memcached::getMulti — Retrieve multiple items
Description
public mixed Memcached::getMulti ( array $keys [, array &$cas_tokens [, int $flags ]] )
Memcached::getMulti() is similar to Memcached::get(), but instead of a single key item, it retrieves multiple items the keys of which are specified in the keys
array. If cas_tokens
variable is provided, it is filled with the CAS token values for the found items.
Note:
Unlike Memcached::get() it is not possible to specify a read-through cache callback for Memcached::getMulti(), because the memcache protocol does not provide information on which keys were not found in the multi-key request.
The flags
parameter can be used to specify additional options for Memcached::getMulti(). Currently, the only available option is Memcached::GET_PRESERVE_ORDER
that ensures that the keys are returned in the same order as they were requested in.
Parameters
-
keys
-
Array of keys to retrieve.
-
cas_tokens
-
The variable to store the CAS tokens for the found items.
-
flags
-
The flags for the get operation.
Return Values
Returns the array of found items or FALSE
on failure. Use Memcached::getResultCode() if necessary.
Examples
Example #1 Memcached::getMulti() example
<?php $m = new Memcached(); $m->addServer('localhost', 11211); $items = array( 'key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3' ); $m->setMulti($items); $result = $m->getMulti(array('key1', 'key3', 'badkey'), $cas); var_dump($result, $cas); ?>
The above example will output something similar to:
array(2) { ["key1"]=> string(6) "value1" ["key3"]=> string(6) "value3" } array(2) { ["key1"]=> float(2360) ["key3"]=> float(2362) }
Example #2 Memcached::GET_PRESERVE_ORDER
example
<?php $m = new Memcached(); $m->addServer('localhost', 11211); $data = array( 'foo' => 'foo-data', 'bar' => 'bar-data', 'baz' => 'baz-data', 'lol' => 'lol-data', 'kek' => 'kek-data', ); $m->setMulti($data, 3600); $null = null; $keys = array_keys($data); $keys[] = 'zoo'; $got = $m->getMulti($keys, $null, Memcached::GET_PRESERVE_ORDER); foreach ($got as $k => $v) { echo "$k $v\n"; } ?>
The above example will output something similar to:
foo foo-data bar bar-data baz baz-data lol lol-data kek kek-data zoo
See Also
- Memcached::getMultiByKey() - Retrieve multiple items from a specific server
- Memcached::get() - Retrieve an item
- Memcached::getDelayed() - Request multiple items
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/memcached.getmulti.php