对于CentOS6.x/6.5/6.4/6.3/6.2/7.x 64位安装php5.2的办法详解

默许状况下，CentOS6 64 bit 已经早已不支撑php5.2.x ，但是某些php程序还需要zend optimizer支撑，如何办呢？当前大部分的yum repos 都已经不支撑直接安置php5.2了，如何在CentOS6.x/6.5/6.4/6.3/6.2/7.x 64位安置php5.2（使用YUM主动安置）

wget -qq -O - http://www.atomicorp.com/installers/atomic | /bin/bash

备份[ !!! Take php.ini, php.conf and other backups !!! ]，假如是新安置的，就忽略此部分。

删除已经安置的php包 yum remove php*

安置 yum install atomic-php52*

做好映射：

ln -s /opt/atomic/atomic-php52/root/usr/bin/php /usr/bin/php
ln -s /opt/atomic/atomic-php52/root/usr/bin/php-cgi /usr/bin/php-cgi
ln -s /opt/atomic/atomic-php52/root/etc/php.d/ /etc/php.d
ln -s /opt/atomic/atomic-php52/root/etc/php.ini /etc/php.ini
ln -s /opt/atomic/atomic-php52/root/usr/lib64/php/ /usr/lib64/php
ln -s /opt/atomic/atomic-php52/root/usr/share/php/ /usr/share/php
vi /etc/httpd/conf.d/atomic-php52-php.conf
# Edit prefork part from libphp5.so to libphp52.so:
LoadModule php5_module modules/libphp52.so

测试：

# php -v
PHP 5.2.17 (cli) (built: May 21 2014 09:58:58)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
# uname -a
Linux host819.ctohome.com 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@host819 etc]# cat /etc/redhat-release
CentOS release 6.5 (Final)

搞定！！

收尾：

service httpd restart
vi /etc/yum.conf

增添 exclude=php* 防止不当心升级了php

在安置zend optimizer即可：

This program makes use of the Zend Scripting Language Engine:
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
    with Zend Extension Manager v1.2.2, Copyright (c) 2003-2007, by Zend Technologies
    with Zend Optimizer v3.3.3, Copyright (c) 1998-2007, by Zend Technologies

假如你需要我们帮您安置php5.2 + Zend Optimizer ，费用是100元/效劳器/次安置

centos5.x 32bit 默许安置是php5.1.x 版本， 要升级到php5.2可尝试如下办法：

cd /tmp;
rpm -ivh http://software.virtualmin.com/bleed/centos/5/i386/virtualmin-bleed-release-1.0-1.rhel.noarch.rpm
rm -f php*

vi /etc/yum.conf 增添下面一行制止升级php5.3

exclude=php*5.3*

施行下面命令开端升级php，检查可否显示的是php5.2的版本

yum update php*

vi /etc/yum.conf 增添下面一行制止升级php

exclude=php*5.3* php*

centos5.x 32bit安置php5.2的另一个办法：

rpm -Uvh http://mirror.webtatic.com/yum/centos/5/latest.rpm
rm -f php*

vi /etc/yum.conf 增添下面一行制止升级php5.3

exclude=php*5.3*

施行下面命令开端升级php，检查可否显示的是php5.2的版本

yum --enablerepo=webtatic --exclude=php*5.3* update php*

安置缺失php库：

yum --enablerepo=webtatic --exclude=php*5.3* install mcrypt mbstring php-mbstring php-mcrypt

升级成功后，

vi /etc/yum.conf 增添下面一行制止升级php

exclude=php*5.3* php*

更多相关php知识，请拜访php教程！

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