How can German weekdays and months be displayed in PHP when formatting dates?

To display German weekdays and months in PHP when formatting dates, you can use the setlocale() function along with the strftime() function. By setting the locale to 'de_DE.utf8', you can ensure that the output will be in German. This will change the weekdays and months to their German equivalents when using strftime() to format dates.

setlocale(LC_TIME, 'de_DE.utf8');
echo strftime('%A, %d. %B %Y', strtotime('2022-01-01'));