关于php 5.4和php 5.2的兼容问题
我们现在新买了个服务器，用的是windows server 2008 r2
配置php 5.4的环境
我们之前开发的用2003,php是用5.2版本的，移植到新服务器，程序运行会有影响吗？
或者我还需要注意那些问题？
回复讨论(解决方案)
不好说，一般情况下应该没问题，你先试下再说，有问题再改就是了。
会有一些影响
比如$names=split(".",$name); 在5.3及以上必须写为$names=split("\.",$name);(如果没记错的话有这一项)
我们现在的项目就因为从5.2升级到5.3出现了这样的问题导致有些功能失效了
诸如此类还有不少,特别是某些从5.3开始不再使用的函数,如果之前的项目中有用到就会失效或者报错
像这些错误 就算逐行排查都很困难, 有条件的话可以先在测试环境上好好测试好 再升级PHP
刚刚百度了下 split是5.3开始 "不建议使用"
http://www.jzxue.com/wangzhankaifa/php/201106/20-7870.html
还有一些是 "不再支持"的...
http://www.csdn123.com/html/20130206/57/260e1100701e4e99ec9d453a38ded1f1.htm
至于5.4惭愧还没认真阅读过新的手册... 也没搜索到相关废弃函数...
会有影响的，建议参考php5.4手册对程序重新维护。有些函数在5.4中已经不建议使用，而且5.4的代码规范更加严格
谢谢了，看来还是弄成5.2版本算了！
谢谢了，看来还是弄成5.2版本算了！
5.3.14还是16 之前的版本有安全漏洞 建议还是升级...
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