I need to show the difference between two times in PHP I use strtotime()
function to convert my times to integer but my problem is the result not matched what I expected
<?php
$hour1 = '12:00:00';
$hour2 = '9:00:00';
$avg = strtotime($hour1) - strtotime($hour2);
$result = date('h:i:s', $avg); // result = 06:30:00 what I expected is 3:00:00
But the difference is 3:00:00 how to calculate this?