time difference in HH:MM:SS format

Question

I want to get time difference in HH:MM:SS format below is the code

if time diff in seconds it should display l like 00:00:35 In minutes :00:30:35 In Hrs :01:30:35

Answer 1

use

$hours   = $interval->format('%H'); 
$minutes = $interval->format('%I');
$seconds = $interval->format('%S');

and concat both three for one variable

or use $interval->format('%H:%I:%S') for single output

//output 00:30:35