Warning: Undefined variable $nahledy in /var/www/localhost/htdocs/sharpen/onegallery.php on line 21

Fatal error: Uncaught TypeError: implode(): Argument #1 ($array) must be of type array, string given in /var/www/localhost/htdocs/sharpen/onegallery.php:21 Stack trace: #0 /var/www/localhost/htdocs/sharpen/onegallery.php(21): implode() #1 /var/www/localhost/htdocs/sharpen/index.php(223): include('...') #2 {main} thrown in /var/www/localhost/htdocs/sharpen/onegallery.php on line 21