问题
I am using timezone to get exact time of a user according to his timezone. I have a drop down list to select timezone for users and showing their current time as they selected their timezone. The code i am using is:
$timezone = 'America/New_York';
date_default_timezone_set($timezone);
echo date('H:i:s A');
It is working fine. I want to get locale of that user using timezone in the same way I am getting current time for that timezone.
How can I achieve the current locale using timezone? Does PHP have any kind of solution to get current locale using timezone?
回答1:
Locale and time zone are orthogonal. You cannot determine one from the other.
America/New_Yorkmeans that the user's local time is aligned to New York City, which happens to be called "Eastern Time" in the United States, which is 5 hours behind UTC during standard time and 4 hours behind UTC when daylight saving time is in effect.en-US(oren_US) means that the user speaks English, with cultural dialects (word choice, numbers, dates, etc.) of the United States. For example,en-USuses MM/DD/YYYY date format, anden-GBuses DD/MM/YYYY date format, but we both call our first month "January", whilees-MXcalls their first month "enero".
I could very well be an English speaking American visiting Japan, thus my time zone would be Asia/Tokyo even though my local would still be en-US.
Aside: A hyphen (-) is the correct character to split language and country codes in a locale identifier. Though some implementations have substituted an underscore (_), this is not correct by the IETF language tag specification.
来源：https://stackoverflow.com/questions/44387956/php-get-current-locale-using-timezone