Как сделать регистрацию пользователя с сайта?

<?php
if (!defined('DATALIFEENGINE')) {
    die("Hacking attempt!");
}
include_once DLEPlugins::Check(ENGINE_DIR . '/classes/htmlpurifier/HTMLPurifier.standalone.php');
include_once DLEPlugins::Check(ENGINE_DIR . '/classes/parse.class.php');
$parse            = new ParseFilter();

if (isset($_POST["name"])) {	
	
$regpassword = $db->safesql( password_hash("{$_POST['password']}", PASSWORD_DEFAULT) );	
$add_time = time();
	
$db->query( "INSERT INTO `dle_users` ( email, password , name, user_group, reg_date, lastdate, info, fullname, xfields ) 
VALUES ('{$_POST['name']}', '{$regpassword}', '{$_POST['name']}', '4', '{$add_time}', '{$add_time}', '{$_POST['info']}', '{$_POST['fullname']}', 'tel|{$_POST['tel']}||data_dr|{$_POST['data_dr']}||total|{$_POST['total']}||discount|{$_POST['discount']}')" );

}
   
?>

<div class="row">
    <form class="col s12" action="" method="post">
        <div class="row">
            <div class="input-field col s6">
                <input name="name" placeholder="00000" id="name" type="text" value="" class="validate">
                <label for="name">Номер карты:</label>
            </div>
.......
		</div>
        <input class="btn" type="submit" value="добавить">
    </form>
</div>