What are the potential pitfalls of using the strtotime function to add days to a date in PHP, especially when dealing with end-of-month scenarios?

When using the strtotime function to add days to a date in PHP, especially when dealing with end-of-month scenarios, a potential pitfall is that it may not always handle the end-of-month edge cases correctly. To solve this issue, it's recommended to use the DateTime class in PHP, which provides more robust date manipulation capabilities.

$date = new DateTime('2022-01-31');
$date->modify('+1 day');
echo $date->format('Y-m-d');