Fatal error: Uncaught Error: Undefined constant "submit" in /home/mhd-01/www.cambioeurodollaro.it/htdocs/convertitore-euro-dollaro.php:13
Stack trace:
#0 {main}
thrown in /home/mhd-01/www.cambioeurodollaro.it/htdocs/convertitore-euro-dollaro.php on line 13