在之前一篇文章内提到过，即将来临的 Joomla! 1.6 会需要 PHP 5.2.x 或更新的版本才能作业或甚至安装。最近在计划试用 Joomla! 1.6 Alpha 版，因此必须要做的第一件事就是把目前在测试伺服器上的 PHP 5.1.6 升级到 PHP 5.2.x。但不幸的，我所使用的作业系统 - CentOS 5.3，还没有官方正式提供所需的升级。使得我必须从其他的来源寻求升级包。

在网路上很快地搜寻了一下，找出几个第三方的软体套件库可能含有 PHP 5.2.x。最后选择从一个半官方的 CentOS 软体套件库 - CentOS-Testing，来取得软体包。这个软体套件库其实是 CentOS 团队提供，用来测试新的或者改进过的软体包，然后才将测试过的软体包放进他们的正式官方发行管道。在那里的软体包都不被正是支援，也不保证会运作正常。使用它们时请小心谨慎。

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