(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.
如果成功则返回 TRUE，失败则返回 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";
?>
上例将输出：
bool(true) Prefix key is now: widgets