Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, false given in /home/sigma-is.ru/htdocs/print.php:56 Stack trace: #0 /home/sigma-is.ru/htdocs/print.php(56): implode() #1 {main} thrown in /home/sigma-is.ru/htdocs/print.php on line 56