安装php

$ cd /usr/local/src
$ wget -O php-7.1.10.tar.bz2 http://cn2.php.net/get/php-7.1.10.tar.bz2/from/this/mirror
$ tar -zxvf php-7.1.10.tar.bz2
$ cd php-7.1.10
$ ./configure --help #查看编译参数
$ ./configure --prefix=/usr/local/php --with-apxs2=/usr/local/httpd/bin/apxs --with-mysqli --with-pdo-mysql
$ /usr/local/src/php-7.1.11/libtool --finish /usr/local/src/php-7.1.11/libs
$ cp /usr/local/src/php-7.1.11/php.ini-development /usr/local/php/lib/php.ini
$ /usr/local/httpd/bin/apachectl stop #关闭apache
$ vi /usr/local/httpd/conf/httpd.conf
LoadModule php7_module modules/libphp7.so #检查是否有这一行，这样apache才能调用到php模块
#告知 Apache 将特定的扩展名解析成php
<FilesMatch \.php$>
    SetHandler application/x-httpd-php
</FilesMatch>

$ /usr/local/httpd/bin/apachectl start #启动apache
$ firewall-cmd --zone=public --add-port=80/tcp --permanent #防火墙打开80端口,这样主机就可以访问到虚拟机的网站了

#添加环境变量
$ vi /etc/profile
PATH=$PATH:/usr/local/httpd/bin:/usr/local/memcached/bin:/usr/local/php/bin
export PATH
$ source /etc/profile

$ php -r 'echo "Hello World\n";'
Hello World