如何获取当前世界时间

Question

The diffrence between 2 dates - current time and mysql time. This can be backdoored when user change his PC time and the code is Bypassing him from the diffrence check.

I've tried to use

mktime()

but its not working when my mysql date is 1451094007 (Sat, 26 Dec 2015 01:40:07 GMT) and real world time is for example 1451108407 (Sat, 26 Dec 2015 05:40:07 GMT) 4 hours later, and minimum difference is 10 hours user can still add some hours on him own PC and bypass time.

How can I get any world time which can't be manipulated?

Answer 1

You get all timezones using in the world store in array then run in loop

foreach($timezonearray as $timezone){

$time = new DateTime($timezone);
   echo $time->format('Y-m-d H:i:s');
}

it will print result like this http://www.timehubzone.com/worldclock

single way

$time = new DateTime('Africa/Abidjan');
   echo $time->format('Y-m-d H:i:s');

you can get all time zones here timezones list

Answer 2

You can use other services such as http://worldclockapi.com/

(see http://worldclockapi.com/api/json/utc/now )

Fetch the result and feed them to variable.

Basically, your application should use the server time where it's hosted (configured with server clock) and time() should have respected the server clock