(PECL memcached >= 0.1.0)
Memcached::setOption — Set a Memcached option
This method sets the value of a Memcached option. Some options correspond to the ones defined by libmemcached, and some are specific to the extension. See Memcached Constants for more information.
The options listed below require values specified via constants.
Memcached::OPT_HASH requires Memcached::HASH_* values.
Memcached::OPT_DISTRIBUTION requires Memcached::DISTRIBUTION_* values.
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 Setting a Memcached option
<?php
$m = new Memcached();
var_dump($m->getOption(Memcached::OPT_HASH) == Memcached::HASH_DEFAULT);
$m->setOption(Memcached::OPT_HASH, Memcached::HASH_MURMUR);
$m->setOption(Memcached::OPT_PREFIX_KEY, "widgets");
echo "Prefix key is now: ", $m->getOption(Memcached::OPT_PREFIX_KEY), "\n";
?>
以上例程会输出：
bool(true) Prefix key is now: widgets