How can PHP be used to compare different times and display the difference?

To compare different times in PHP and display the difference, you can use the DateTime class to create DateTime objects for each time, then use the diff() method to calculate the difference between them. You can then format the difference as needed using the format() method.

$startTime = new DateTime('2022-01-01 08:00:00');
$endTime = new DateTime('2022-01-01 10:30:00');

$timeDiff = $startTime->diff($endTime);

echo $timeDiff->format('%H hours, %i minutes');