先用yum安装httpd Apache：yum install httpd

然后安装mysql：更新源

wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-server-5.5.48-1.el6.x86_64.rpm

wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-client-5.5.48-1.el6.x86_64.rpm

wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-devel-5.5.48-1.el6.x86_64.rpm

rpm -ivh MySQL-server-5.5.48-1.el6.x86_64.rpm

rpm -ivh MySQL-client-5.5.48-1.el6.x86_64.rpm

rpm -ivh MySQL-devel-5.5.48-1.el6.x86_64.rpm

如果安装不成功mysql和自带的mysql5.1冲突卸载mysql5.1 yum -y remove mysql-libs-5.1*

重新安装mysql rpm -ivh MySQL-server-5.5.48-1.el6.x86_64.rpm

启动mysql service mysql start

最后安装php环境：

1.查询是否安装有php rpm -qa|grep php

2.更新源

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm

rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

3.查看php版本列表 yum list php*

4.安装php及相关软件（相关扩展）

yum install php55w.x86_64 php55w-fpm.x86_64 php55w-mysql.x86_64 php55w-gd.x86_64 libjpeg* php55w-ldap.x86_64 php55w-odbc.x86_64 php55w-pear.noarch php55w-xml.x86_64 php55w-xmlrpc.x86_64 php55w-mbstring.x86_64 php55w-bcmath.x86_64 php-mhash

如果安装mysql扩展又冲突那是因为依赖包版本过低下载高版本依赖包然后重新安装mysql wget http://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-shared-compat-5.6.14-1.el6.x86_64.rpm

rpm -ivh MySQL-shared-compat-5.6.14-1.el6.x86_64.rpm

最后重新安装php-mysql扩展 yum install php-mysql

安装mysql教程：https://blog.csdn.net/keyunq/article/details/51076807

安装php教程：https://blog.csdn.net/leejianjun/article/details/52200909

解决php-mysql扩展冲突问题：https://www.cnblogs.com/caryfang/p/5439299.html