What are the potential pitfalls of using timestamps to handle date navigation in PHP?

One potential pitfall of using timestamps to handle date navigation in PHP is that timestamps are dependent on the server's timezone settings, which can lead to unexpected results when moving between different timezones. To solve this issue, it is recommended to use PHP's DateTime class, which allows for more flexibility and control over date and time calculations.

// Create a DateTime object with the desired timezone
$date = new DateTime('now', new DateTimeZone('UTC'));

// Navigate to the next day
$date->modify('+1 day');

// Format the date in a desired format
echo $date->format('Y-m-d');