动态更改时区

时间：2009-12-24 01:58:09

标签： php timezone

我有一个小的php服务器端应用程序，允许用户更改他们的时区。我在ini文件中设置了默认时区，但需要动态更改，以便我可以将用户定义的时间传递给数据库查询以获得正确的结果。处理这个问题的最佳方法是什么？我应该使用date_default_timezone_set（）？

编辑：这是一项艰巨的任务还是我没有解释我需要什么呢？

2 个答案:

答案 0 :(得分：11)

这是一种模式：

  1. 按用户存储时区（例如字符串$ userTimezone ='America / Los_Angeles'）。

  2. 设置MySQL连接会话的时区

    在任何CRUD语句之前发出此MySQL命令：

      

    “SET SESSION time_zone = $ userTimezone;”

  3. 将日期时间（在用户的时区中提供）存储在MySQL TIMESTAMP字段中（在UTC内部存储 - 它将根据MySQL会话time_zone在存储和检索时为您进行转换）。

  4. 当你选择（只要已经发出SET SESSION）时，DATE_FORMAT（）中包含的日期时间将在用户的时区中，格式化并准备好显示给用户。

    5. 这是用户选择时区的用户友好型SELECT：

    <option value="Pacific/Midway">(GMT-11:00) Midway Island, Samoa</option>
<option value="America/Adak">(GMT-10:00) Hawaii-Aleutian</option>
<option value="Etc/GMT+10">(GMT-10:00) Hawaii</option>
<option value="Pacific/Marquesas">(GMT-09:30) Marquesas Islands</option>
<option value="Pacific/Gambier">(GMT-09:00) Gambier Islands</option>
<option value="America/Anchorage">(GMT-09:00) Alaska</option>
<option value="America/Ensenada">(GMT-08:00) Tijuana, Baja California</option>
<option value="Etc/GMT+8">(GMT-08:00) Pitcairn Islands</option>
<option value="America/Los_Angeles">(GMT-08:00) Pacific Time (US & Canada)</option>
<option value="America/Denver">(GMT-07:00) Mountain Time (US & Canada)</option>
<option value="America/Chihuahua">(GMT-07:00) Chihuahua, La Paz, Mazatlan</option>
<option value="America/Dawson_Creek">(GMT-07:00) Arizona</option>
<option value="America/Belize">(GMT-06:00) Saskatchewan, Central America</option>
<option value="America/Cancun">(GMT-06:00) Guadalajara, Mexico City, Monterrey</option>
<option value="Chile/EasterIsland">(GMT-06:00) Easter Island</option>
<option value="America/Chicago">(GMT-06:00) Central Time (US & Canada)</option>
<option value="America/New_York">(GMT-05:00) Eastern Time (US & Canada)</option>
<option value="America/Havana">(GMT-05:00) Cuba</option>
<option value="America/Bogota">(GMT-05:00) Bogota, Lima, Quito, Rio Branco</option>
<option value="America/Caracas">(GMT-04:30) Caracas</option>
<option value="America/Santiago">(GMT-04:00) Santiago</option>
<option value="America/La_Paz">(GMT-04:00) La Paz</option>
<option value="Atlantic/Stanley">(GMT-04:00) Faukland Islands</option>
<option value="America/Campo_Grande">(GMT-04:00) Brazil</option>
<option value="America/Goose_Bay">(GMT-04:00) Atlantic Time (Goose Bay)</option>
<option value="America/Glace_Bay">(GMT-04:00) Atlantic Time (Canada)</option>
<option value="America/St_Johns">(GMT-03:30) Newfoundland</option>
<option value="America/Araguaina">(GMT-03:00) UTC-3</option>
<option value="America/Montevideo">(GMT-03:00) Montevideo</option>
<option value="America/Miquelon">(GMT-03:00) Miquelon, St. Pierre</option>
<option value="America/Godthab">(GMT-03:00) Greenland</option>
<option value="America/Argentina/Buenos_Aires">(GMT-03:00) Buenos Aires</option>
<option value="America/Sao_Paulo">(GMT-03:00) Brasilia</option>
<option value="America/Noronha">(GMT-02:00) Mid-Atlantic</option>
<option value="Atlantic/Cape_Verde">(GMT-01:00) Cape Verde Is.</option>
<option value="Atlantic/Azores">(GMT-01:00) Azores</option>
<option value="Europe/Belfast">(GMT) Greenwich Mean Time : Belfast</option>
<option value="Europe/Dublin">(GMT) Greenwich Mean Time : Dublin</option>
<option value="Europe/Lisbon">(GMT) Greenwich Mean Time : Lisbon</option>
<option value="Europe/London">(GMT) Greenwich Mean Time : London</option>
<option value="Africa/Abidjan">(GMT) Monrovia, Reykjavik</option>
<option value="Europe/Amsterdam">(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna</option>
<option value="Europe/Belgrade">(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague</option>
<option value="Europe/Brussels">(GMT+01:00) Brussels, Copenhagen, Madrid, Paris</option>
<option value="Africa/Algiers">(GMT+01:00) West Central Africa</option>
<option value="Africa/Windhoek">(GMT+01:00) Windhoek</option>
<option value="Asia/Beirut">(GMT+02:00) Beirut</option>
<option value="Africa/Cairo">(GMT+02:00) Cairo</option>
<option value="Asia/Gaza">(GMT+02:00) Gaza</option>
<option value="Africa/Blantyre">(GMT+02:00) Harare, Pretoria</option>
<option value="Asia/Jerusalem">(GMT+02:00) Jerusalem</option>
<option value="Europe/Minsk">(GMT+02:00) Minsk</option>
<option value="Asia/Damascus">(GMT+02:00) Syria</option>
<option value="Europe/Moscow">(GMT+03:00) Moscow, St. Petersburg, Volgograd</option>
<option value="Africa/Addis_Ababa">(GMT+03:00) Nairobi</option>
<option value="Asia/Tehran">(GMT+03:30) Tehran</option>
<option value="Asia/Dubai">(GMT+04:00) Abu Dhabi, Muscat</option>
<option value="Asia/Yerevan">(GMT+04:00) Yerevan</option>
<option value="Asia/Kabul">(GMT+04:30) Kabul</option>
<option value="Asia/Yekaterinburg">(GMT+05:00) Ekaterinburg</option>
<option value="Asia/Tashkent">(GMT+05:00) Tashkent</option>
<option value="Asia/Kolkata">(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi</option>
<option value="Asia/Katmandu">(GMT+05:45) Kathmandu</option>
<option value="Asia/Dhaka">(GMT+06:00) Astana, Dhaka</option>
<option value="Asia/Novosibirsk">(GMT+06:00) Novosibirsk</option>
<option value="Asia/Rangoon">(GMT+06:30) Yangon (Rangoon)</option>
<option value="Asia/Bangkok">(GMT+07:00) Bangkok, Hanoi, Jakarta</option>
<option value="Asia/Krasnoyarsk">(GMT+07:00) Krasnoyarsk</option>
<option value="Asia/Hong_Kong">(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi</option>
<option value="Asia/Irkutsk">(GMT+08:00) Irkutsk, Ulaan Bataar</option>
<option value="Australia/Perth">(GMT+08:00) Perth</option>
<option value="Australia/Eucla">(GMT+08:45) Eucla</option>
<option value="Asia/Tokyo">(GMT+09:00) Osaka, Sapporo, Tokyo</option>
<option value="Asia/Seoul">(GMT+09:00) Seoul</option>
<option value="Asia/Yakutsk">(GMT+09:00) Yakutsk</option>
<option value="Australia/Adelaide">(GMT+09:30) Adelaide</option>
<option value="Australia/Darwin">(GMT+09:30) Darwin</option>
<option value="Australia/Brisbane">(GMT+10:00) Brisbane</option>
<option value="Australia/Hobart">(GMT+10:00) Hobart</option>
<option value="Asia/Vladivostok">(GMT+10:00) Vladivostok</option>
<option value="Australia/Lord_Howe">(GMT+10:30) Lord Howe Island</option>
<option value="Etc/GMT-11">(GMT+11:00) Solomon Is., New Caledonia</option>
<option value="Asia/Magadan">(GMT+11:00) Magadan</option>
<option value="Pacific/Norfolk">(GMT+11:30) Norfolk Island</option>
<option value="Asia/Anadyr">(GMT+12:00) Anadyr, Kamchatka</option>
<option value="Pacific/Auckland">(GMT+12:00) Auckland, Wellington</option>
<option value="Etc/GMT-12">(GMT+12:00) Fiji, Kamchatka, Marshall Is.</option>
<option value="Pacific/Chatham">(GMT+12:45) Chatham Islands</option>
<option value="Pacific/Tongatapu">(GMT+13:00) Nuku\'alofa</option>
<option value="Pacific/Kiritimati">(GMT+14:00) Kiritimati</option>

    来自阵列：

    $timezone_pairs = array(
'Pacific/Midway'=>'(GMT-11:00) Midway Island, Samoa',
'America/Adak'=>'(GMT-10:00) Hawaii-Aleutian',
'Etc/GMT+10'=>'(GMT-10:00) Hawaii',
'Pacific/Marquesas'=>'(GMT-09:30) Marquesas Islands',
'Pacific/Gambier'=>'(GMT-09:00) Gambier Islands',
'America/Anchorage'=>'(GMT-09:00) Alaska',
'America/Ensenada'=>'(GMT-08:00) Tijuana, Baja California',
'Etc/GMT+8'=>'(GMT-08:00) Pitcairn Islands',
'America/Los_Angeles'=>'(GMT-08:00) Pacific Time (US & Canada)',
'America/Denver'=>'(GMT-07:00) Mountain Time (US & Canada)',
'America/Chihuahua'=>'(GMT-07:00) Chihuahua, La Paz, Mazatlan',
'America/Dawson_Creek'=>'(GMT-07:00) Arizona',
'America/Belize'=>'(GMT-06:00) Saskatchewan, Central America',
'America/Cancun'=>'(GMT-06:00) Guadalajara, Mexico City, Monterrey',
'Chile/EasterIsland'=>'(GMT-06:00) Easter Island',
'America/Chicago'=>'(GMT-06:00) Central Time (US & Canada)',
'America/New_York'=>'(GMT-05:00) Eastern Time (US & Canada)',
'America/Havana'=>'(GMT-05:00) Cuba',
'America/Bogota'=>'(GMT-05:00) Bogota, Lima, Quito, Rio Branco',
'America/Caracas'=>'(GMT-04:30) Caracas',
'America/Santiago'=>'(GMT-04:00) Santiago',
'America/La_Paz'=>'(GMT-04:00) La Paz',
'Atlantic/Stanley'=>'(GMT-04:00) Faukland Islands',
'America/Campo_Grande'=>'(GMT-04:00) Brazil',
'America/Goose_Bay'=>'(GMT-04:00) Atlantic Time (Goose Bay)',
'America/Glace_Bay'=>'(GMT-04:00) Atlantic Time (Canada)',
'America/St_Johns'=>'(GMT-03:30) Newfoundland',
'America/Araguaina'=>'(GMT-03:00) UTC-3',
'America/Montevideo'=>'(GMT-03:00) Montevideo',
'America/Miquelon'=>'(GMT-03:00) Miquelon, St. Pierre',
'America/Godthab'=>'(GMT-03:00) Greenland',
'America/Argentina/Buenos_Aires'=>'(GMT-03:00) Buenos Aires',
'America/Sao_Paulo'=>'(GMT-03:00) Brasilia',
'America/Noronha'=>'(GMT-02:00) Mid-Atlantic',
'Atlantic/Cape_Verde'=>'(GMT-01:00) Cape Verde Is.',
'Atlantic/Azores'=>'(GMT-01:00) Azores',
'Europe/Belfast'=>'(GMT) Greenwich Mean Time : Belfast',
'Europe/Dublin'=>'(GMT) Greenwich Mean Time : Dublin',
'Europe/Lisbon'=>'(GMT) Greenwich Mean Time : Lisbon',
'Europe/London'=>'(GMT) Greenwich Mean Time : London',
'Africa/Abidjan'=>'(GMT) Monrovia, Reykjavik',
'Europe/Amsterdam'=>'(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna',
'Europe/Belgrade'=>'(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague',
'Europe/Brussels'=>'(GMT+01:00) Brussels, Copenhagen, Madrid, Paris',
'Africa/Algiers'=>'(GMT+01:00) West Central Africa',
'Africa/Windhoek'=>'(GMT+01:00) Windhoek',
'Asia/Beirut'=>'(GMT+02:00) Beirut',
'Africa/Cairo'=>'(GMT+02:00) Cairo',
'Asia/Gaza'=>'(GMT+02:00) Gaza',
'Africa/Blantyre'=>'(GMT+02:00) Harare, Pretoria',
'Asia/Jerusalem'=>'(GMT+02:00) Jerusalem',
'Europe/Minsk'=>'(GMT+02:00) Minsk',
'Asia/Damascus'=>'(GMT+02:00) Syria',
'Europe/Moscow'=>'(GMT+03:00) Moscow, St. Petersburg, Volgograd',
'Africa/Addis_Ababa'=>'(GMT+03:00) Nairobi',
'Asia/Tehran'=>'(GMT+03:30) Tehran',
'Asia/Dubai'=>'(GMT+04:00) Abu Dhabi, Muscat',
'Asia/Yerevan'=>'(GMT+04:00) Yerevan',
'Asia/Kabul'=>'(GMT+04:30) Kabul',
'Asia/Yekaterinburg'=>'(GMT+05:00) Ekaterinburg',
'Asia/Tashkent'=>'(GMT+05:00) Tashkent',
'Asia/Kolkata'=>'(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi',
'Asia/Katmandu'=>'(GMT+05:45) Kathmandu',
'Asia/Dhaka'=>'(GMT+06:00) Astana, Dhaka',
'Asia/Novosibirsk'=>'(GMT+06:00) Novosibirsk',
'Asia/Rangoon'=>'(GMT+06:30) Yangon (Rangoon)',
'Asia/Bangkok'=>'(GMT+07:00) Bangkok, Hanoi, Jakarta',
'Asia/Krasnoyarsk'=>'(GMT+07:00) Krasnoyarsk',
'Asia/Hong_Kong'=>'(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi',
'Asia/Irkutsk'=>'(GMT+08:00) Irkutsk, Ulaan Bataar',
'Australia/Perth'=>'(GMT+08:00) Perth',
'Australia/Eucla'=>'(GMT+08:45) Eucla',
'Asia/Tokyo'=>'(GMT+09:00) Osaka, Sapporo, Tokyo',
'Asia/Seoul'=>'(GMT+09:00) Seoul',
'Asia/Yakutsk'=>'(GMT+09:00) Yakutsk',
'Australia/Adelaide'=>'(GMT+09:30) Adelaide',
'Australia/Darwin'=>'(GMT+09:30) Darwin',
'Australia/Brisbane'=>'(GMT+10:00) Brisbane',
'Australia/Hobart'=>'(GMT+10:00) Hobart',
'Asia/Vladivostok'=>'(GMT+10:00) Vladivostok',
'Australia/Lord_Howe'=>'(GMT+10:30) Lord Howe Island',
'Etc/GMT-11'=>'(GMT+11:00) Solomon Is., New Caledonia',
'Asia/Magadan'=>'(GMT+11:00) Magadan',
'Pacific/Norfolk'=>'(GMT+11:30) Norfolk Island',
'Asia/Anadyr'=>'(GMT+12:00) Anadyr, Kamchatka',
'Pacific/Auckland'=>'(GMT+12:00) Auckland, Wellington',
'Etc/GMT-12'=>'(GMT+12:00) Fiji, Kamchatka, Marshall Is.',
'Pacific/Chatham'=>'(GMT+12:45) Chatham Islands',
'Pacific/Tongatapu'=>'(GMT+13:00) Nuku\'alofa',
'Pacific/Kiritimati'=>'(GMT+14:00) Kiritimati'
);

答案 1 :(得分：2)

是的，根据需要使用date_default_timezone_set。这太容易了吗？

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