l202/12.2.php

<!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> <?php if($_GET['graden']){ $graden = $_GET['graden']; $fahrenheit = berekening($graden); echo "$graden graden is gelijk aan $fahrenheit fahrenheit"; } else{ echo "Voer hier het aantal graden in"; } function berekening($graden){ $b = $graden * 1.8 + 32; return $b; } ?> <form method='get' action =''> <input type='text' name='graden'> <input type='submit' value='Omrekenen'> </form> </body> </html>

Resultaat

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