VPS必备：yum -y install gcc automake autoconf libtool make
error: C++ preprocessor "/lib/cpp" fails sanity check 则安装gcc-c++ yum install gcc-c++
grpc等需要zlib
yum install zlib-devel
安装源
rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
yum install php71w php71w-cli php71w-common php71w-devel php71w-fpm php71w-gd php71w-mbstring php71w-mysqlnd php71w-pdo php71w-process php71w-soap php71w-tidy php71w-xml php71w-pear
安装pecl
yum install php71w-pear (71w为对应版本，可以是)
安装grpc 扩展
pecl install grpc
error: zlib.h: No such file or directory 则安装zlib-devel ， yum install zlib-devel
安装完成，新增文件 /usr/lib64/php/modules/grpc.so
vi /etc/php.d/grpc.ini
输入内容
; Enable grpc extension module
extension=grpc.so
-----------安装grpc扩展已可使用grpc，pb扩展非必须-----------------------------
安装pb扩展
pecl install protobuf 或 pecl install protobuf-{VERSION}
安装完成，新增文件 /usr/lib64/php/modules/protobuf.so
vi /etc/php.d/protobuf.ini
输入内容
; Enable protobuf extension module
extension=protobuf.so
------------------------------------------------------------------
yum install php71w php71w-cli php71w-common php71w-devel php71w-fpm php71w-gd php71w-mbstring php71w-mysqlnd php71w-pdo php71w-process php71w-soap php71w-tidy php71w-xml php71w-pear zlib-devel
-------------------------------------------------------------------
composer require "nmred/kafka-php" -vvv