Program PHP Menghitung Luas Segitiga
Dan berikut adalah source code untuk menghitung luas segitiga menggunakan Php dan bootstrap:
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
<title>Luas Segitiga</title>
</head>
<body>
<h5 class="text-center mt-5">Menghitung Luas Segitiga</h5><hr>
<div class="d-flex container justify-content-center mt-3">
<form method="post">
<div class="form-group">
<label>Alas </label>
<input type="number" class="form-control" name="a">
</div>
<div class="form-group">
<label>Tinggi</label>
<input type="number" class="form-control" name="t">
</div>
<?php if(isset($_POST['hitung']))
{
$a = $_POST['a'];
$t = $_POST['t'];
$luas = 1/2 * (int)$a * (int)$t;
echo "<div class='alert alert-info'>Luas Segitiga $luas
<button type='button' class='close' data-dismiss='alert' aria-label='Close'>
<span aria-hidden='true'>×</span>
</button></div>
";
}
?>
<button type="submit" class="btn btn-primary btn-sm btn-block" name="hitung">Hitung</button>
</form>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
</body>
</html>
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