Fatal error: Uncaught TypeError: mktime(): Argument #6 ($year) must be of type ?int, string given in /homepages/25/d13409924/htdocs/php/Programm/programmdrucken.php:14 Stack trace: #0 /homepages/25/d13409924/htdocs/php/Programm/programmdrucken.php(14): mktime(0, 0, 0, 1, 1, '') #1 {main} thrown in /homepages/25/d13409924/htdocs/php/Programm/programmdrucken.php on line 14