What are the best practices for handling dates and times in PHP, especially when formatting them?

When working with dates and times in PHP, it is important to use the DateTime class for accurate and reliable date and time manipulation. This class provides a wide range of methods for formatting dates and times according to your needs. To format a date or time in PHP, you can use the format() method of the DateTime object with the desired format string.

// Create a new DateTime object
$date = new DateTime('2022-01-01 12:00:00');

// Format the date in a specific format
$formatted_date = $date->format('Y-m-d H:i:s');

echo $formatted_date;