Memcached::setMulti

(PECL memcached >= 0.1.0)

Memcached::setMulti — 存储多个元素

说明

public Memcached::setMulti(array $items, int $expiration = 0): bool

Memcached::setMulti() 类似于 Memcached::set()，但是使用了参数 items 指定多个元素来替代单独的 key/value 设置以便于对多个元素的操作。expiration 参数指定的时候一次应用到所有的元素上。

参数

items: 存放在服务器上的键／值对数组。
expiration: 到期时间，默认为 0。更多信息请参见到期时间。

返回值

成功时返回 true，或者在失败时返回 false。如需要则使用 Memcached::getResultCode()。

示例

示例 #1 Memcached::setMulti() 示例

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

$items = array(
    'key1' => 'value1',
    'key2' => 'value2',
    'key3' => 'value3'
);
$m->setMulti($items, time() + 300);
?>

参见

Memcached::setMultiByKey() - 在指定服务器存储多个元素
Memcached::set() - 存储一个元素

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用户贡献的备注 3 notes

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Nicolas ¶

11 years ago

This is what the previous comment (fake set multi):

https://github.com/php-memcached-dev/php-memcached/blob/master/php_memcached.c#L1219

down

nulll ¶

6 years ago

The previous comment is from April 2013, it has a link pointing on current master, so things are changed since 2013 in the source code.

Maybe the right link is
https://github.com/php-memcached-dev/php-memcached/blob/80cb21467a1db6b7b18725df586f11801c823695/php_memcached.c#L1219

By the way, can someone skilled in C confirm the "fake setMulti" problem?

down

jooonic at googlemail dot com ¶

14 years ago

Dont expect setmulti is faster then multiple SETs!
It doesn't use the setmulti lib function, it iterats over every key and send him alone.
I can't find any php implementation with setmulti support (needs support for memcached's binary protocol, remember php's "memcache"-extension only supports text-protocol).
Thats bad, not enought throughput to membase.
So i have to use redis instead, coz of its support for get/set multi.