85 lines
2.4 KiB
PHP
85 lines
2.4 KiB
PHP
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Fakultät Berechnung</title>
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<style>
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body {
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font-family: Arial, sans-serif;
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background-color: #f2f2f2;
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text-align: center;
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padding: 50px;
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background-image: url('weihnachten_1.jpg');
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background-position: center;
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background-repeat: no-repeat;
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background-size: 100%;
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}
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.container {
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background-color: #fff;
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padding: 20px;
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border-radius: 10px;
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
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display: inline-block;
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}
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h1 {
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color: #d32f2f;
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}
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input[type="number"] {
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padding: 10px;
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margin: 10px 0;
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border: 1px solid #ccc;
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border-radius: 5px;
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}
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input[type="submit"] {
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padding: 10px 20px;
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background-color: #d32f2f;
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color: #fff;
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border: none;
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border-radius: 5px;
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cursor: pointer;
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}
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input[type="submit"]:hover {
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background-color: #b71c1c;
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}
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span {
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color: #d32f2f;
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font-weight: bold;
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}
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.text_2 {
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font-size: 20px;
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margin-top: 20px;
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}
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</style>
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</head>
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<body background-image:progp\bilder\weihnachten_1.jpg>
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<div class="container">
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<h1>Fakultät Berechnung</h1>
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<form method="post">
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<label for="number">Geben Sie eine Nummer ein:</label><br>
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<input type="number" id="number" name="number" required><br>
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<input type="submit" value="Berechnen">
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</form>
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<?php
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function fak($n) {
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if ($n < 0) {
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return "Ungültige Eingabe";
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}
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if ($n == 0) {
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return 1;
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}
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$result = 1;
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for ($i = 1; $i <= $n; $i++) {
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$result *= $i;
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}
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return $result;
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}
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if ($_SERVER["REQUEST_METHOD"] == "POST") {
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$number = intval($_POST["number"]);
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echo "<p class='text_2'>Die Fakultät von <span>$number</span> ist <span>" . fak($number) . "</span></p>";
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}
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?>
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</div>
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</body>
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</html>
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