(PECL memcached >= 2.0.0)
Memcached::setOptions — Set Memcached options
$options): boolMemcached::setOptions() is a variation of the Memcached::setOption() that takes an array of options to be set.
optionsAn associative array of options where the key is the option to set and the value is the new value for the option.
成功时返回 true， 或者在失败时返回 false。
示例 #1 Setting Memcached options
<?php
$m = new Memcached();
var_dump($m->getOption(Memcached::OPT_HASH) == Memcached::HASH_DEFAULT);
$m->setOptions(array(Memcached::OPT_HASH => Memcached::HASH_MURMUR, Memcached::OPT_PREFIX_KEY => "widgets"));
var_dump($m->getOption(Memcached::OPT_HASH) == Memcached::HASH_DEFAULT);
echo "Prefix key is now: ", $m->getOption(Memcached::OPT_PREFIX_KEY), "\n";
?>以上示例会输出：
bool(true) bool(false) Prefix key is now: widgets