$date1 = ’15/06/2025 17:52′;
$date2 = ’10/12/2022′;

$date1_timestamp = strtotime($date1);
$date2_timestamp = strtotime($date2);

$hour_diff = round(abs($date1_timestamp – $date2_timestamp) / (60 * 60), 0);

return $hour_diff;