kafka扩展 安装librdkafka https://github.com/edenhill/librdkafka tar -zxvf librdkafka-1.2.0.tar.gz -C /usr/local/ && cd /usr/local/librdkafka-1.2.0 && ./configure && make && make install && ln -s /usr/local/lib/librdkafka.so.1 /usr/lib/ 安装php-rdkafka htt