Warning: Undefined array key "jahr" in D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php on line 22

Warning: Undefined array key "day" in D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php on line 23

Warning: Undefined array key "info" in D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php on line 24

Deprecated: fopen(): Passing null to parameter #1 ($filename) of type string is deprecated in D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php on line 34

Fatal error: Uncaught ValueError: Path cannot be empty in D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php:34 Stack trace: #0 D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php(34): fopen('', 'w') #1 {main} thrown in D:\xampp\htdocs\_0\06_Hotel\beleg08\admin\eintr.php on line 34