<?php
session_start();
if ($_SERVER["REQUEST_METHOD"] != "POST") {
$_SESSION['captcha'] = rand(1000, 9999);
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Kontaktformular</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.1/css/all.css">
</head>
<body>
<div class="container mt-5">
<div class="row justify-content-center">
<div class="col-md-6">
<div class="card text-white bg-primary mb-3">
<div class="card-header text-center"><i class="fas fa-envelope"></i> Kontaktformular</div>
<div class="card-body">
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if ($_POST['captcha'] != $_POST['hidden_captcha']) {
echo '<div class="alert alert-danger">Das eingegebene Captcha ist falsch.</div>';
} else {
$name = $_POST['name'];
$email = $_POST['email'];
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
echo '<div class="alert alert-danger">Ungültige E-Mail-Adresse eingeben.</div>';
} else {
$subject = $_POST['subject'];
$message = $_POST['message'];
$message .= "<br/><br/>---<br/>";
$message .= "Sendedatum: " . date('Y-m-d') . "<br/>";
$message .= "Uhrzeit: " . date('H:i:s') . "<br/>";
$message .= "IP-Adresse: " . $_SERVER['REMOTE_ADDR'];
$to = 'youremail@example.com';
$headers = "From: $name <$email>\r\n";
$headers .= "Content-type: text/html; charset=UTF-8\r\n";
if (mail($to, $subject, $message, $headers)) {
echo '<div class="alert alert-success">Danke für Ihre Nachricht!</div>';
} else {
echo '<div class="alert alert-danger">Fehler beim Senden der Nachricht.</div>';
}
}
}
}
$captcha = rand(1000, 9999);
?>
<form action="" method="post">
<div class="form-group">
<label for="name"><i class="fas fa-user"></i> Name</label>
<input type="text" class="form-control" id="name" name="name" required>
</div>
<div class="form-group">
<label for="email"><i class="fas fa-envelope"></i> Email</label>
<input type="email" class="form-control" id="email" name="email" required>
</div>
<div class="form-group">
<label for="subject"><i class="fas fa-marker"></i> Betreff</label>
<input type="text" class="form-control" id="subject" name="subject" required>
</div>
<div class="form-group">
<label for="message"><i class="fas fa-comment"></i> Nachricht</label>
<textarea class="form-control" id="message" name="message" required></textarea>
</div>
<div class="form-group">
<label for="captcha"><i class="fas fa-shield-alt"></i> Captcha: <?php echo $captcha; ?></label>
<input type="hidden" name="hidden_captcha" value="<?php echo $captcha; ?>">
<input type="text" class="form-control" id="captcha" name="captcha" required>
</div>
<button type="submit" class="btn btn-light"><i class="fas fa-paper-plane"></i> Senden</button>
</form>
</div>
</div>
</div>
</div>
</div>
</body>
</html>