php5.3升级到5.5

在网站中发布中：

/ 开启调试模式建议开发阶段开启部署阶段注释或者设为false
define('APP_DEBUG',true);

true没问题，改为：false就报错报错如下：

 PHP Fatal error:  Class 'Think\Log' not found in /var/www/html/yzxx-v.2.0/ThinkPHP/Library/Think/Think.class.php on line 335, referer: http://xxx.xxx.xxx.xxx/login.html

php版本为5.3.3 后来有童鞋说改成 php5.5就好了。修改过程记录如下。

1.检查当前安装的PHP包删除

yum list installed | grep php

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

我的操作如下：

[root@bogon webuser]# yum list installed | grep php*
php.x86_64              5.3.3-46.el6_6  @updates                                
php-cli.x86_64          5.3.3-46.el6_6  @updates                                
php-common.x86_64       5.3.3-46.el6_6  @updates                                
php-devel.x86_64        5.3.3-46.el6_6  @updates                                
php-gd.x86_64           5.3.3-46.el6_6  @updates                                
php-mbstring.x86_64     5.3.3-46.el6_6  @updates                                
php-mysql.x86_64        5.3.3-46.el6_6  @updates                                
php-pdo.x86_64          5.3.3-46.el6_6  @updates                                
php-pgsql.x86_64        5.3.3-46.el6_6  @updates                                
[root@bogon webuser]# yum remove php*
或者：
[root@bogon html]# yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-devel.x86_64 php-gd.x86_64  php-mbstring.x86_64  php-mysql.x86_64 php-pdo.x86_64 php-pgsql.x86_64

2.更新源

Centos 5.X
  rpm -Uvh http://mirror.webtatic.com/yum/el5/latest.rpm
CentOs 6.x
  rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm
CentOs 7.X
rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

3.运行yum install 安装php5.5

yum install php55w.x86_64 php55w-cli.x86_64 php55w-common.x86_64 php55w-gd.x86_64 php55w-ldap.x86_64 php55w-mbstring.x86_64 php55w-mcrypt.x86_64 php55w-mysql.x86_64 php55w-pdo.x86_64
注：如果想升级到5.6把上面的55w换成56w就可以了

yum install php56w.x86_64 php56w-cli.x86_64 php56w-common.x86_64 php56w-gd.x86_64 php56w-ldap.x86_64 php56w-mbstring.x86_64 php56w-mcrypt.x86_64 php56w-mysql.x86_64 php56w-pdo.x86_64

4、系统用到 redis 和 postgresql ：

yum install php-redis php55w-pgsql.x86_64

注意：若php版本为5.6 则安装：php56w-pgsql.x86_64