"; print_r($_POST); echo "";
extract($_POST);
if (is_numeric($bil1) && is_numeric($bil2)) {
$hasil = $bil1." ".$opr." ".$bil2. " = ";
switch($opr) {
case "+": $hasil .= $bil1+$bil2; break;
case "-": $hasil .= $bil1-$bil2; break;
case "*": $hasil .= $bil1*$bil2; break;
case "/": $hasil .= $bil1/$bil2; break;
case "%": $hasil .= $bil1%$bil2; break;
case "**": $hasil .= $bil1**$bil2; break;
default: echo 'Operator salah!';
}
} else {
$error = "Operand yang diinputkan bukan bilangan!";
}
}
?>
Document