What are the potential pitfalls of using setlocale function for date formatting in PHP?

Potential pitfalls of using setlocale function for date formatting in PHP include dependency on server configurations, inconsistent behavior across different environments, and potential conflicts with other parts of the application. To avoid these issues, it's recommended to use the DateTime class in PHP for date formatting, as it provides a more reliable and consistent way to work with dates.

$date = new DateTime();
echo $date->format('Y-m-d H:i:s');