A4.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 for($x = 20; $x <= 20 && $x >= 0; $x-=2){ $kwadraat = $x*$x; echo("$x x $x = $kwadraat<br>"); } ?> </body> </html>

Resultaat

Made by Thijs Aarnoudse