来自 html 形式的 Mysql 数据库中记录为 0000-00-00 的日期值

我知道同样的问题已被问过几次，但我似乎无法解决它。我已经完成了我找到的所有解决方案，但在我的情况下不起作用。“日期”被记录为 0000-00-00在 Mysql 数据库中而不是正确的日期。这是 PHP 代码。`

// initialize variables

$Vehicle_name = "";
$Vehicle_make = "";
$Vehicle_color="";
$Number_plate = "";
$Driver_name = "";
$Number_of_passengers = "";
$Date = "";
$Time = "";
$Security = "";


$id = 0;
$update = false;

if (isset($_POST['save'])) {

    $Vehicle_name = $_POST['Vehicle_name'];
    $Vehicle_make = $_POST['Vehicle_make'];
    $Vehicle_color = $_POST['Vehicle_color'];
    $Number_plate = $_POST['Number_plate'];
    $Driver_name = $_POST['Driver_name'];
    $Number_of_passengers = $_POST['Number_of_passengers'];
    $Date = $_POST['Date '];
    $Time = $_POST['Time'];
    $Security = $_POST['Security'];


    mysqli_query($db, "INSERT INTO vehicle (Vehicle_name,Vehicle_make,Vehicle_color,Number_plate,Driver_name,Number_of_passengers,Date,Time,Security ) VALUES ('$Vehicle_name','$Vehicle_make','$Vehicle_color','$Number_plate','$Driver_name','$Number_of_passengers','$Date','$Time','$Security ')"); 
    $_SESSION['message'] = "Car registered"; 
    header('location: welcome.php');
}`.

这里也是日期文本框代码。

<div class="input-group"> <label>Date :</label> <input type="date" name="Date" value="" required="yes" > </div>.

我花了很多时间试图弄清楚，但都是徒劳的，请帮助。问候。