<?php include '../php_library/class_frontend.php'; $obj = new Frontend(); if (isset($_POST['submit'])) { if (isset($_POST['first_name']) && $_POST['last_name'] && $_POST['date_of_birth'] && $_POST['username'] && $_POST['password'] && $_POST['c_password']) { if ($_POST['password'] == $_POST['c_password']) { $obj->insert_into_user_table($_POST); $message = "Thank you for registering on our blog " . $_POST['username']; } else { $error = "Your password don't match"; } } } include 'header.php'; ?> <div class="container"> <div class="row"> <div class="col-sm-8"> <form action="<?php echo $_SERVER["PHP_SELF"]; ?> " method="post"> <?php if (isset($error)) { echo "<h1 class=alert-warning>{$error}</h1>"; } ?> <?php if (isset($message)) {