鉴于Centos 默认yum源的php版本太低了，手动编译安装又有点一些麻烦，那么如何采用Yum安装的方案安装最新版呢。那么，今天我们就来学习下如何用yum安装php最新版。
1.检查当前安装的PHP包
yum list installed | grep php
2.如果有安装的PHP包，先删除他们
yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-ldap.x86_64 php-mbstring.x86_64 php-mcrypt.x86_64 php-mysql.x86_64 php-pdo.x86_64
配置yum源
追加CentOS 6.5的epel及remi源
rpm -Uvh http://ftp.iij.ad.jp/pub/linux/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
以下是CentOS 7.0的源
yum install epel-release
rpm -ivh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm
使用yum list命令查看可安装的包(Packege)
yum list --enablerepo=remi --enablerepo=remi-php56 | grep php
安装PHP5.6.x
yum源配置好了，下一步就安装PHP5.6。
yum install --enablerepo=remi --enablerepo=remi-php56 php php-opcache php-devel php-mbstring php-mcrypt php-mysqlnd php-phpunit-PHPUnit php-pecl-xdebug php-pecl-xhprof
用PHP命令查看版本
# php --version
PHP 5.6.0 (cli) (built: Sep 3 2014 19:51:31)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2014 Zend Technologies
with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2014, by Zend Technologies
with Xdebug v2.2.5, Copyright (c) 2002-2014, by Derick Rethans
安装PHP-fpm
yum install --enablerepo=remi --enablerepo=remi-php56 php-fpm