How can I subtract a date from today's date in PHP and display the result?

To subtract a date from today's date in PHP, you can use the DateTime class to create two DateTime objects representing the dates you want to subtract. Then, you can use the diff() method to calculate the difference between the two dates. Finally, you can display the result in the desired format.

$date1 = new DateTime('2022-01-01');
$date2 = new DateTime();
$interval = $date2->diff($date1);
echo $interval->format('%a days'); // Displays the difference in days