检查是否超过两个小时

Question

I'm looking for an easy way to see if more than two hours has passed between two dates. I can either do this with a MySQL DATETIME value, or if needed, I can convert that to a UNIX timestamp. I just need an easy way to to compare those two dates and see if more than 2 hours has passed.

Answer 1

尝试在MySQL中查看DATEDIFF函数。

Answer 2

A UNIX timestamp is just the number of seconds that have elapsed since 12:00AM UTC, January 1, 1970.

Two hours in seconds is 60 * 60 * 2 = 7200 . So,

 if($secondTimestamp - $firstTimestamp >= 7200)
 {
      echo '2 hours have elapsed.';
 }

Answer 3

Since you tagged with php, you could use PHP's DateTime::diff ( DateTime::diff ) to get a diff between two datetime objects. I guess it depends on where in your application you are doing the comparison.

Answer 4

In PHP

  $time = strtotime($date2) - strtotime($date1); //this will give difference in seconds between two dates

  if(($time/3600) >= 2) { // 2 hours has left }