Fatal error: Uncaught Error: Undefined constant "cena" in /home/users/borim/public_html/borim.pl/kalkulator/content/img/wykres.php:7 Stack trace: #0 /home/users/borim/public_html/borim.pl/kalkulator/img.php(37): include() #1 {main} thrown in /home/users/borim/public_html/borim.pl/kalkulator/content/img/wykres.php on line 7