联系人表单仅修改一个字段php

Question

我在我的汽车网站上有一个很长的联系表格，你可以看到客户必须用她或他的名字、汽车模型、汽车小费和手机号码等填写表格，因为你看到我有一个电子邮件的条件，如果它是无效的，它会给出一个错误的信息，并清理客户之前填写的所有字段，

<?php
error_reporting(0);
include("config_mashin.php");
$namee = mysqli_real_escape_string($connect, $_POST['namee']);
$modell = mysqli_real_escape_string($connect, $_POST['modell']);
$tipp = mysqli_real_escape_string($connect, $_POST['tipp']);
$colorr = mysqli_real_escape_string($connect, $_POST['colorr']);
$exchangee = mysqli_real_escape_string($connect, $_POST['exchangee']);
$pricee = mysqli_real_escape_string($connect, $_POST['pricee']);
$loan = mysqli_real_escape_string($connect, $_POST['loan']);

$family = mysqli_real_escape_string($connect, $_POST['family']);
if (!empty($_POST['emaill'])) {
    $emaill = $_POST['emaill'];
    if (!preg_match("/^[_a-z0-9]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i", $emaill)){ 
        $error .= "The e-mail address you entered is not valid. <br/>";
        echo"$error";
    }
}
$mobilee = mysqli_real_escape_string($connect, $_POST['mobilee']);
$phonee = mysqli_real_escape_string($connect, $_POST['phonee']);
if(isset($_POST['submit']) && empty($error)){ 
//insert to database
    $insert =mysqli_query($connect,"INSERT INTO $db_table VALUES (i dont write this part to simplify code)");

}

?>

是否有任何方法来保持其他字段完整，客户只需修改电子邮件部分。请帮帮忙

Answer 1

你可以这样做：

<form method='post' action=''>
    <input type='text' name='name' value='<?php echo isset($_POST['name']) ? $_POST['name']: ""; ?>' />
    <input type='submit' name='submit' value='Submit' />
</form>

对你们每个字段都是如此。