## setOption ##### *Description* Set client option. 設置客戶端的選項 ##### *Parameters* *parameter name* *parameter value* ##### *Return value* *BOOL*: `<span class="calibre12">TRUE</span>` on success, `<span class="calibre12">FALSE</span>` on error. ##### *Example* ``` <pre class="calibre9">$redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_NONE); // don't serialize data $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_PHP); // use built-in serialize/unserialize $redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_IGBINARY); // use igBinary serialize/unserialize $redis->setOption(Redis::OPT_PREFIX, 'myAppName:'); // use custom prefix on all keys ```