What is the recommended approach for converting a datetime value to a specific date format in PHP?

When converting a datetime value to a specific date format in PHP, the recommended approach is to use the `DateTime` class along with the `format()` method. This allows you to easily format the datetime value according to your desired output format. Simply create a new `DateTime` object with the datetime value, and then call the `format()` method with the desired format string to get the formatted date.

$datetimeValue = "2022-01-15 14:30:00";
$dateTimeObj = new DateTime($datetimeValue);
$formattedDate = $dateTimeObj->format('Y-m-d H:i:s');

echo $formattedDate;