memcache 基本使用

        $mem = new Memcache;        $mem->connect("101.200.63.219", 11211);        //保存数据        $mem->set('key1', 'This is first value', 0, 60);        $val = $mem->get('key1');        echo "Get key1 value: " . $val ."<br />";\        //替换数据        $mem->replace('key1', 'This is replace value', 0, 60);        $val = $mem->get('key1');        echo "Get key1 value: " . $val . "<br />";        //保存数组        $arr = array('aaa', 'bbb', 'ccc', 'ddd');        $mem->set('key2', $arr, 0, 60);        $val2 = $mem->get('key2');        echo "Get key2 value: ";        print_r($val2);        echo "<br />";        //删除数据        $mem->delete('key1');        $val = $mem->get('key1');        echo "Get key1 value: " . $val . "<br />";        //清除所有数据        $mem->flush();        $val2 = $mem->get('key2');        echo "Get key2 value: ";        print_r($val2);        echo "<br />";        //关闭连接        $mem->close();