Question

好的，我想在文本框中显示我的一个客户记录中的一个姓氏，因为我希望用户能够编辑sql数据库中存储的客户的值。我一直在尝试执行此操作，但似乎无法使它正常工作，因为它仅显示一个空框。这就是我想要做的

    <FORM NAME ="form2" METHOD ="POST" ACTION = "phptest.php">
<div class="form-group">
  <label for="txtForename">Forename:</label>
  <input type="text" class="form-control" id="txtForename2" NAME = "txtForename" value = "<?php

 $conn = mysqli_connect("localhost", "root", "", "cardatabase");


$sql = "SELECT forename FROM customers where customerID = 13";
$result = $conn->query($sql);
 echo " $result";



  ?>">
</div>

我正在尝试在文本框的value选项中显示它，但似乎无法正常工作。注意：这是针对大学项目的，所以我对这些东西并不陌生，并且我也知道注入攻击。

预先感谢

Answer 1

<?php
$conn = mysqli_connect("localhost", "root", "", "cardatabase");
$queryString= "SELECT `forename` FROM `customers` where `customerID` = '13'";
$result =mysqli_query($conn, $queryString);
if (mysqli_num_rows($result ))
    {
        while ($row = mysqli_fetch_assoc($result )) {
            $arr[] = $row;

        }
        $forename = $arr[0]['forename'];

    } else {
        $forename = "No data found";
    }

?>
<FORM NAME ="form2" METHOD ="POST" ACTION = "phptest.php">
 <div class="form-group">
  <label for="txtForename">Forename:</label>
  <input type="text" class="form-control" id="txtForename2" NAME = "txtForename" value = "<?=$forename?>">
 </div>
</form>

使用php在文本框中显示sql变量

1 个答案: