1.安装所依赖类库
#yum install gd zlib zlib-devel openssl openssl-devel libxml2 libxml2-devel libjpeg libjpeg-devel libpng libpng-devel
2.进入/usr/local/src目录下载php7.0压缩包
1 wget http://cn2.php.net/get/php-7.0.28.tar.gz/from/this/mirror
3.解压
mv mirror php7
tar xzfv php7
4.进入到php-7.0.28目录，配置
./configure --prefix=/usr/local/php --with-gd --enable-gd-native-ttf --enable-mysqlnd --with-mysql=mysqlnd --with-pdo-mysql=mysqlnd --with-openssl --enable-mbstring --enable-fpm
--prefix参数，这样可以将要安装的应用安装到指定的directory下
例如/usr/local/php
5.启动php
./sbin/php-fpm
6.根据报错更改下，然后查看php进程
