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Memcached::getMulti

Contents

(PECL memcached >= 0.1.0)

Memcached::getMulti — Retrieve multiple items

Description

public Memcached::getMulti ( array $keys [, int $flags ] ) : mixed

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.

Note:

Before v3.0 a second argument &cas_tokens was in use. It was filled with the CAS token values for the found items. The &cas_tokens parameter was removed in v3.0 of the extension. It was replaced with a new flag Memcached::GET_EXTENDED that needs is to be used as the value for flags.

The flags parameter can be used to specify additional options for Memcached::getMulti(). Memcached::GET_PRESERVE_ORDER ensures that the keys are returned in the same order as they were requested in. Memcached::GET_EXTENDED ensures that the CAS tokens will be fetched too.

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Parameters

keys

Array of keys to retrieve.

flags

The flags for the get operation.

PHP: Memcached::getMulti - Manual Home of Manuel PHP  Contents Haut

Return Values

Returns the array of found items or FALSE on failure. Use Memcached::getResultCode() if necessary.

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Examples

Example #1 Memcached::getMulti() example for Memcached v3

<?php
// Valid for v3 of the extension

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

$items = array(
    'key1' => 'value1',
    'key2' => 'value2',
    'key3' => 'value3'
);
$m->setMulti($items);
$result = $m->getMulti(array('key1', 'key3', 'badkey'));
var_dump($result);
?>

The above example will output something similar to:

array(2) {
  ["key1"]=>
  string(6) "value1"
  ["key3"]=>
  string(6) "value3"
}

Example #2 Memcached::getMulti() example for Memcached v1 and v2

<?php
// Valid for v1 and v2 of the extension

$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 #3 Memcached::GET_PRESERVE_ORDER example for Memcached v3

<?php
// Valid for v3 of the extension

$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);

$keys = array_keys($data);
$keys[] = 'zoo';
$got = $m->getMulti($keys, 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

Example #4 Memcached::GET_PRESERVE_ORDER example for Memcached v1 and v2

<?php
// Valid for v1 and v2 of the extension

$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

PHP: Memcached::getMulti - Manual Home of Manuel PHP  Contents Haut

Changelog

Version Description
3.0.0 The &cas_tokens parameter was removed. The Memcached::GET_EXTENDED was added and when passed as a flag it ensures the CAS tokens to be fetched.

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See Also

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-memcached.getmulti.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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