<!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
function celcius($fahrenheit){
$celcius = ($fahrenheit - 32) / 1.8;
return $celcius;
}
echo(celcius(86));
?>
</body>
</html>
Made by Thijs Aarnoudse