Question

我试图实现一个更改数据库密码的表单，但是，当我在表单上提交详细信息时，它只是将我引导到目标页面...但是在浏览器上显示和明文代码....为什么这样做呢！

表格：

    <h1 align="center">Change Password</h1>

            <form method="POST" action="reset_pwd.php">
                <table class='altrowstable' id='alternatecolor' >
                    <tr>
                        <td align="right">Username: </td>
                        <td><input type="TEXT" name="username" value=""/></td>
                    </tr>
                    <tr>
                        <td align="right">Current Password: </td>
                        <td><input type="password" name="password" value=""/></td>
                    </tr>
                    <tr>
                        <td align="right">New Password: </td>
                        <td><input type="password" name="npassword" value=""/></td>
                    </tr>
                    <tr>
                        <td align="right">Repeat New Password: </td>
                        <td><input type="password" name="rpassword" value=""/></td>
                    </tr>
                    <tr><td align="center">
                        <a href="forgot_password.php">Forgot password</a>
                        </td>
                   <td>
                        <input type="submit" name="submit" value="Change Password"/>
                        </td>
                    </tr>
                </table>

            </form>
        <br>
 <?php echo $msg; ?>

和目标php页面：

<?php
include('dbconfig.php');


$msg = "";


if (mysql_real_escape_string($_POST['submit'])):


    $username = mysql_real_escape_string($_POST['username']);
    $password = mysql_real_escape_string(md5($_POST['password']));
    $npassword = mysql_real_escape_string(md5($_POST['npassword']));
    $rpassword = mysql_real_escape_string(md5($_POST['rpassword']));





    $sql = "SELECT * FROM user_info WHERE user_id = '$username' ";
    $query = mysql_query($sql);
    $numrows = mysql_num_rows($query);


    while ($rows = mysql_fetch_array($query)):

        $dbusername = $rows['username'];
        $dbpassword = $rows['password'];
        $dbfirstname = $rows ['firstname'];
        $dblastname = $rows ['lastname'];

    endwhile;


    if (empty($username) || empty($password) || empty($npassword) || 
    empty($rpassword)):

        $msg = "All fields are required";

    elseif ($numrows == 0):

        $msg = "This username does not exist";

    elseif ($password != $dbpassword):

        $msg = "The CURRENT password you entered is incorrect.";

    elseif ($npassword != $rpassword):

        $msg = "Your new passwords do not match";

    elseif ($npassword == $password):

        $msg = "Your new password cannot match your old password";

    else:


        mysql_query("UPDATE user_info SET password = '$npassword' WHERE user_id = 
         '$username'");

        $to = $email;

        $subject = "YOUR PASSWORD HAS BEEN CHANGED";

        $message = "<p>Hello $dbfirstname $dblastname. You've received this E-Mail
        because you have requested a PASSWORD CHANGE. ";

        $from = "myemail@.com";

        $headers = "From: $from";


        mail($to,$subject,$message,$headers);

        endif;
  endif;

 ?>

Answer 1

目标页面中没有要在浏览器中显示的HTML响应。要显示内容，您需要形成适当的html，以便可以在浏览器中显示。

在目标页面中，在末尾添加以下html代码，以便显示消息（验证或成功）。

<html><body>put your message here</body></htm>

Answer 2

PLease check ...“user_info”表格中“user_id”的类型是什么......以及您从表单中获取的用户名字段是什么。

我在问这个问题......

$sql = "SELECT * FROM user_info WHERE user_id = '$username' ";

Answer 3

目标php中的第一个$ msg仅用于目标php，不会将值返回到表单

其次，你可能会寻找 if（isset（$ _ POST ['submit']））：而不是 if（mysql_real_escape_string（$ _ POST ['submit']））：

Answer 4

你可能忘记了一个额外的？＆gt;在包含文件“dbconfig.php”的末尾，从而将目标php页面视为html。

PHP MySQL：为什么我的表单加载了纯文本页面？

4 个答案: