1、搜寻是否安装过相关内容
yum list installed | grep php
如果安装过则需要全部卸载
yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-fpm.x86_64 php-gd.x86_64 php-mbstring.x86_64 php-mysql.x86_64 php-pdo.x86_64 php-pear.noarch php-process.x86_64 php-xml.x86_64
2、安装yun源
rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
搜索是否有相关资源
yum search php7
3、安装相关PHP和扩展
yum install php72w php72w-cli.x86_64 php72w-common.x86_64 php72w-fpm.x86_64 php72w-gd.x86_64 php72w-mbstring.x86_64 php72w-mysql.x86_64 php72w-pdo.x86_64 php72w-pear.noarch php72w-process.x86_64 php72w-xml.x86_64
4、查看相关版本
php -v
5、php-fpm的配置（略）可查看站内相关文章
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