如何从 PHP 中的 IP 地址/国家名称中查找时区 ID?
谁能告诉我PHP中是否有任何方法可以从IP地址或国家名称获取时区区域，例如('Asia/Calcutta')?
Can anyone please tell me if there is any way available in PHP to fetch timezone region like('Asia/Calcutta') from IP Address or country name?
说明:
我正在尝试根据他/她的国家/地区设置用户时区.我从他的 IP 地址获取用户国家/地区，但我需要该国家/地区的时区区域，例如('Asia/Calcutta')来检查该国家/地区是否启用 DST.谁能给我一些合适的PHP解决方案?
I am trying to set user timezone based on his/her country. I am getting user country from his IP address, But I need timezone region of that country like('Asia/Calcutta') to check whether DST is on in that country. Can anyone please provide me some suitable solution in PHP?
推荐答案
使用IP地址
时区有时遵循一些古怪的规则.IP 地理位置绝非精确(尽管某些供应商声称).
Timezones follow sometimes quirky rules. IP geolocation is anything but precise (notwithstanding the claims of some vendors).
话虽如此，您当然可以使用 MaxMind 等 Geo IP 产品找到城市和国家:
Having said that, you can certainly find the city and country using a Geo IP product such as MaxMind's:
http://www.maxmind.com/app/geolite
其中包含一个 PHP 模块
which includes a PHP module
http://www.maxmind.com/app/php
然后您可以使用 MaxMind API 来尝试估计用户的时区
You can then use the MaxMind APIs to try and estimate the user's timezone
http://www.maxmind.com/app/faq#timezone
替代方案
如果您想依赖用户的时钟而不是 IP 地址，jsTimezoneDetect 效果很好(尽管它并不完美).
If you want to rely on your user's clock rather than the IP address, jsTimezoneDetect works quite well (though it is not perfect).
https://bitbucket.org/pellepim/jstimezonedetect/wiki/Home
总结
这两种技术都不能在所有情况下都完美地发挥作用.确保您允许您的用户更正任何自动生成的时区建议.
Neither technique works perfectly in all cases. Be sure you allow your user to correct any auto-generated timezone suggestion.
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