What are the advantages of using DateTime class over traditional timestamp manipulation for date calculations in PHP?

When working with dates and times in PHP, using the DateTime class provides a more object-oriented and intuitive way to manipulate dates compared to traditional timestamp manipulation. The DateTime class offers a wide range of methods for performing common date calculations, formatting dates, and working with time zones. It also handles edge cases and leap years more effectively, resulting in more accurate date calculations.

// Using DateTime class for date calculations
$date = new DateTime('2022-10-15');
$date->modify('+1 day');
echo $date->format('Y-m-d');