如何从“Y：m：d H：i：s”中减去“Y：m：d H：i：s”并将结果返回“H：i”

Question

I want to result of EndTime - StartTime to get Task Completed Time in This Format Like "02 Hours : 30 Mins". Both StartTime and EndTime is in this Format "Y:m:d H:i:s". I tried this but not giving correct output.

$starttime = $row['StartTime'];
$endtime = $row['EndTime'];

//method1
$starttime = date("H:i",$starttime);
$endtime = date("H:i",$endtime);
$start = strtotime($starttime);
$end = strtotime($endtime);
$achtime = $end-$start;
$achtime = date("H:i",$achtime);

//method2
$interval = date_diff($starttime,$endtime);
$achtime = date_format($interval,'H Hours : i Mins');

I tried both but not working.

Answer 1

You can use DateTime Object.

$startDate = new DateTime("2018:08:18 00:00:00"); 
$endDate   = new DateTime("2018:08:18 02:10:00");
$interval  = $startDate->diff($endDate);

echo ($interval->days * 24) + $interval->h ." Hours : ". $interval->i ." Mins";

If you want to be very specific about the date being read, or the format you are being given isn't a supported format, then it is recommend to use DateTime object.