我正在尝试使用下面的php和html代码更新我的phpmyadmin数据库:我已经成功地添加了第一行数据,但是一旦我再次尝试使用表单,我就无法添加另一行数据,除非我删除之前插入到数据库中的数据。简而言之,我的数据库一次只能有一行。感谢您的帮助:)
<html>
<head>
</head>
<body>
    <form action="inserto.php" method="post">
        Customer ID: <input type="number" name="IDc">
            <br/>
        Stock ID: <input type="number" name="IDs">
            <br/>
        Date of Purchase: <input type="date" name="dob">
            <br/>
        Pay status: <input type="text" name="paystatus">
            <br/>
        Price Paid: <input type="text" name="price">
            <br/>
        Discount: <input type="text" name="discount">
            <br/>
        <input type="submit" value="Submit">
    </form>
</body>
</html>
<?php
    $con = mysqli_connect("localhost", "root", "", "jainam_ia");
    if(!$con)
    {
        echo 'Not connected';
    }
    $IDc=$_POST['IDc'];
    $IDs=$_POST['IDs'];
    $dob=$_POST['dob'];
    $paystatus=$_POST['paystatus'];
    $price=$_POST['price'];
    $discount=$_POST['discount'];
    $sql = "INSERT INTO tbl_orders (IDc, IDs, Date_of_purchase, Pay_Status, Price_Paid, Discount) VALUES ('$IDc', '$IDs', '$dob', '$paystatus', '$price', '$discount')";
    if(!mysqli_query($con,$sql))
    {
        echo 'Order not added';
    }
    else
    {
        echo 'Order added';
    }
    header("refresh:2; url=indexo.html");
?>https://stackoverflow.com/questions/50663124
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