<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <h1>Valutan i kronor</h1> <?php $dollar = $_POST['currency']; $sek = $dollar * 11; echo "<p>$dollar $ = $sek kr</p>"; ?> </body> </html>