centos6安装php5.4
安装的命令行很简单
sudo yum --enablerepo=remi install php
不过如果你没有配置源Repository，就需要首先启动REMI源：
wget http://rpms.famillecollet.com/enterPRise/remi-release-6.rpm#64Bit下载wget http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm#32Bit下载wget http://mirrors.sohu.com/fedora-epel/6/i386/epel-release-6-8.noarch.rpm
rpm安装
rpm -Uvh epel-release-6-8.noarch.rpmrpm -Uvh remi-release-6.rpm
然后用remi源来安装php
yum --enablerepo=remi install php
确认正确的版本，回答Y开始安装。
如何查看PHP的版本号：# php -vPHP 5.4.30 (cli) (built: Jun 25 2014 15:27:51)Copyright (c) 1997-2014 The PHP GroupZend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologieswith Zend Guard Loader v3.3, Copyright (c) 1998-2013, by Zend Technologies安装成功。