php 8小时时间差的解决方法小结
原来从php5.1.0开始，php.ini里加入了date.timezone这个选项，默认情况下是关闭的
也就是显示的时间（无论用什么php命令）都是格林威治标准时间
和我们的时间（北京时间）差了正好8个小时，有以下3中方法可以恢复正常的时间。
1，最简单的方法就是不要用php5.1以上的版本
2，如果一定要用，而且不能修改php.ini，则需要在关于时间的初始化的语句的
上面加上 date_default_timezone_set (XXX);
3，一劳永逸，仅限能修改php.ini。打开php.ini查找date.timezone 去掉前面的分号
= 后面加XXX，重启http服务（如apache2或iis等）即可
关于XXX，大陆内地可用的值是：Asia/Chongqing ，Asia/Shanghai ，Asia/Urumqi （依次为重庆，上海，乌鲁木齐）
港台地区可用：Asia/Macao ，Asia/Hong_Kong ，Asia/Taipei （依次为澳门，香港，台北）
还有新加坡：Asia/Singapore
老外好像把北京漏调了
其他可用的值是：Etc/GMT-8 ，Singapore ，Hongkong ，PRC
PRC是什么？PRC是中华人民共和国啊-_-
以上都是我从php官方说明档里整理出来的GMT-8下面的地区，可能会有遗漏
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