<form id="form" action="send.php" method="POST" name="order-form" accepted-charset="utf-8">
<input type="text" name="name" placeholder="Имя">
<input type="text" name="phone" placeholder="Телефон">
<button>Заказать со скидкой</button>
</form>
<?php
$name = $_POST['name'];
$phone = $_POST['phone'];
$name = htmlspecialchars($name);
$phone = htmlspecialchars($phone);
$name = urldecode($name);
$phone = urldecode($phone);
$name = trim($name);
$phone = trim($phone);
mail("адрес почты", "Заказ фитнес-резинок Esonstyle", "Имя: ".$name."\r\nТелефон: ".$phone ,"From: адрес почты \r\n")
?>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Ваша заявка успешно отправлена</title>
<!-- Fonts -->
<link href="https://fonts.googleapis.com/css?family=IBM+Plex+Sans" rel="stylesheet" type="text/css">
<!-- Styles -->
<style>
html, body {
background-color: #fff;
color: #636b6f;
font-family: 'IBM Plex Sans', sans-serif;
font-weight: 100;
height: 100vh;
margin: 0;
}
.full-height {
height: 100vh;
}
.flex-center {
align-items: center;
display: flex;
justify-content: center;
}
.position-ref {
position: relative;
}
.content {
text-align: center;
}
.title {
font-size: 20px;
padding: 20px;
}
</style>
</head>
<body>
<div class="flex-center position-ref full-height">
<div class="content">
<div class="title">
<br><span style="font-size:33px;font-weight:500;">Спасибо!</span><br><br>
Ваша заявка успешно отправлена.<br>
<?php if(isset($_SERVER['HTTP_REFERER']) && $_SERVER['HTTP_REFERER']) { ?>
<br><br><a href="<?php echo $_SERVER['HTTP_REFERER']; ?>" style="text-decoration: none; border-bottom: 1px dotted">Вернуться назад</a>
<?php } ?>
</div>
</div>
</div>
</body>
</html>
Простой