10Formularze w php zadanie 1 Rozkwitalski/Kuling/Krajnik

<!DOCTYPE html> <html lang="pl">
<head>
<meta charset="utf-8"> <title>Formularze</title>
<meta http-equiv="X-Ua-Compatible" content="IE=edge,chrome=1">
</head>
<body>
<br>
<br>
<form method="post">
<label>A: <input type="text" name="aa" /></label>
<label>B: <input type="text" name="bb" /></label> <br>
<input type="radio" name="ans" value="+"/> + <br>
<input type="radio" name="ans" value="-"/> - <br>
<input type="radio" name="ans" value="*"/> * <br>
<input type="radio" name="ans" value=":"/> : <br>
<input type="submit" value="Oblicz" />
<input type="reset" value="Wyczyść" />
</form>
<?php
$a = $_POST['aa'];
$b = $_POST['bb'];
$answer = $_POST['ans'];

if ($answer == "+"){
	$wynik = $a + $b;
	echo $wynik;
}

if ($answer == "-"){
	$wynik = $a - $b;
	echo $wynik;
}

if ($answer == "*"){
	$wynik = $a * $b;
	echo $wynik;
}

if ($answer == ":"){
	$wynik = $a / $b;
	echo $wynik;
}
?>
</body>
</html>