1、升级PHP(升级前请确定升级后不会带来不良后果，比如系统不支持某些包的问题)

#rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
#rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
#yum install yum-plugin-replace 
#yum replace php-common --replace-with=php56w-common

2、升级php-fpm

# rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
# rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
# cd /etc/yum.repos.d
# curl -O http://rpms.famillecollet.com/enterprise/remi.repo
# yum install php-fpm php php-devel -y --enablerepo=remi-php56
# /usr/sbin/php-fpm -version

升级php-5.6.19 和php-fpm5.6.19

原文：http://www.cnblogs.com/JohannaFeng/p/5642048.html