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Deprecated: mysqli::query(): Passing null to parameter #1 ($query) of type string is deprecated in /var/www/clients/client2/web13/web/inc/db-artikel-get.php on line 13

Fatal error: Uncaught ValueError: mysqli::query(): Argument #1 ($query) cannot be empty in /var/www/clients/client2/web13/web/inc/db-artikel-get.php:13 Stack trace: #0 /var/www/clients/client2/web13/web/inc/db-artikel-get.php(13): mysqli->query() #1 /var/www/clients/client2/web13/web/artikel.php(8): include('...') #2 {main} thrown in /var/www/clients/client2/web13/web/inc/db-artikel-get.php on line 13