1,安装依赖包
yum install -y gcc gcc-c++ gd-devel libmcrypt-devel libcurl-devel openssl-devel zlib-devel libxml2 libxml2-devel
2，下载源码包
wget http://php.net/distributions/php-5.6.22.tar.gz
3，解压
tar -zxf php-5.6.22.tar.gz
4，生成配置文件
cd php-5.6.22
./configure --prefix=/usr/local/php5.6 --with-config-file-path=/opt/php/lib --enable-mbstring --enable-ftp --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-mysql=mysqlnd --with-mysqli=mysqlnd --with-openssl-dir=/usr --with-openssl --with-pdo-mysql=mysqlnd --with-pear --enable-sockets --with-freetype-dir=/usr --enable-gd-native-ttf --with-zlib --with-libxml-dir=/usr --with-xmlrpc --enable-zip --enable-fpm --enable-fpm --enable-xml --enable-sockets --with-gd --with-zlib --with-iconv --enable-zip --with-freetype-dir=/usr/lib/ --enable-soap --enable-pcntl --enable-cli
5，编译安装
make && make install
6，创建软链接
ln -sv /usr/local/php5.6/bin/php /usr/bin/php
