【centos】php5.4升级到php5.6

centos7 自带php5.4，升级到php5.6的方法： 
https://webtatic.com/packages/php56/

CentOS/RHEL 7.x:

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
CentOS/RHEL 6.x:

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

然后执行下面的：
3.执行下面的命令删除php  
yum remove php-common  
然后像安装那样问你是否继续的，输入yes即可  

接着继续安装：

yum install php56w-fpm php56w-opcache

当然，请顺便安装必要的扩展：
yum install -y php56w php56w-opcache php56w-xml php56w-mcrypt php56w-gd php56w-devel php56w-mysql php56w-intl php56w-mbstring

好了，假如你像我一样还有postgresql的话，那么也顺便安装：

yum install php56w-pgsql


执行完毕之后，重启php-fpm、nginx

systemctl restart php-fpm nginx