我正在尝试更改登录用户的密码。在页面上,它说密码被更改了,但它没有更改,数据库没有更改,根本没有更改。我试过用新密码登录,但还是用旧密码无法登录。我确实刷新了页面。我正在尝试这个几天,我想知道是否有人会善意地发现我的错误。今晚我想可能是因为密码在数据库中用md5加密了。我该如何继续,因为我已经尝试了一些事情,但没有工作。
error_reporting(E_ALL); ini_set("display_errors","On");
<?php include "includes/connection.php" ?>
<?php
session_start();
if(@$_REQUEST["Submit"]=="Update")
{
$sql="update users set password ='$_REQUEST[newpassword]' where user='$_SESSION[myusername]'";
if (!mysql_query($sql)) die('err: PROBLEM IN QUERY: '.mysql_error());
header("Location:changpass.php?msg=updated");
}
else
die('err: PROBLEM IN REQUEST');
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Change password</TITLE>
<script language="javascript" type="text/javascript">
function validate()
{
var formName=document.frm;
if(formName.newpassword.value == "")
{
document.getElementById("newpassword_label").innerHTML='Please Enter New Password';
formName.newpassword.focus();
return false;
}
else
{
document.getElementById("newpassword_label").innerHTML='';
}
if(formName.cpassword.value == "")
{
document.getElementById("cpassword_label").innerHTML='Enter ConfirmPassword';
formName.cpassword.focus();
return false;
}
else
{
document.getElementById("cpassword_label").innerHTML='';
}
if(formName.newpassword.value != formName.cpassword.value)
{
document.getElementById("cpassword_label").innerHTML='Passwords Missmatch';
formName.cpassword.focus()
return false;
}
else
{
document.getElementById("cpassword_label").innerHTML='';
}
}
</script>
<style type="text/css">
<!--
.style1 {font-weight: bold}
.style7 {
color: yellow;
font-size: 24px;
}
.style9 {
color: #FF6666;
font-weight: bold;
}
.style12 {
color: #666666;
font-weight: bold;
}
.style14 {color: #CC0033; font-weight: bold; }
-->
</style>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
</HEAD>
<BODY>
<form action="changpass.php" method="post" name="frm" id="frm" onSubmit="return validate();">
<table width="47%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td colspan="2" align="center"></td>
</tr>
<tr bgcolor="#666666">
<td colspan="2"><span class="style7">Change Password</span></td>
</tr>
<?php if(isset($_REQUEST['msg']) && $_REQUEST['msg'] == 'updated') { ?>
<tr bgcolor="#666666">
<td colspan="2"><span class="style7">Password has been changed successfully.</span></td>
</tr>
<?php } ?>
<tr>
<td bgcolor="#CCCCCC"><span class="style14">New Password:</span></td>
<td bgcolor="#CCCCCC"><input type="password" name="newpassword" id="newpassword" size="20" autocomplete="off"/> <label id="newpassword_label"
class="level_msg"></td>
</tr>
<tr>
<td bgcolor="#CCCCCC"><span class="style14">Confirm Password:</span></td>
<td bgcolor="#CCCCCC"><input type="password" name="cpassword" id="cpassword" size="20" autocomplete="off"> <label id="cpassword_label"
class="level_msg"></td>
</tr><tr bgcolor="#666666"><td colspan="2" align="center"><input type="submit" name="Submit" value="Update" /></td>
</tr></table><a href="index.php">Home</a></form></BODY></HTML>`
我增强了你的代码:
<?php
if ($_REQUEST['Submit'] == "Update")
{
$sql = "UPDATE `users` SET `password`='".$_REQUEST['newpassword']."' WHERE `user`='".$_SESSION['myusername']."'";
mysql_query($sql);
header("Location: changpass.php?msg=updated");
exit;
}
?>
要使用此代码,请确保以下内容:
1)你有正确的提交按钮,示例如下:
<input type="submit" name="Submit" value="Update" />
2)您有正确的密码字段,示例如下:
<input type="password" name="newpassword" value="" />
3)会话必须在密钥myusername
4)确保您的表字段和名称是正确的。做更多的调试
如果这仍然不能解决问题,请添加表单代码以进行进一步研究。
编辑
下面是对这段代码的解释,对于一些基本的调试目的可能会有所帮助:<?php
if (isset($_REQUEST['Submit']) && $_REQUEST['Submit'] == "Update")
{
if (!isset($_SESSION['myusername'])) trigger_error("DEBUG: SESSION VARIABLE IS NOT SET");
if (!isset($_REQUEST['newpassword']) || empty($_REQUEST['newpassword'])) trigger_error("DEBUG: NEW PASSWORD IS NOT GIVEN");
$sql = "UPDATE `users` SET `password`='".mysql_real_escape_string($_REQUEST['newpassword'])."' WHERE `user`='".mysql_real_escape_string($_SESSION['myusername'])."'";
$qw = mysql_query($sql);
if (!$qw) trigger_error("DEBUG: MYSQL RESPONDED WITH ERROR - ".mysql_error());
header("Location: changpass.php?msg=updated");
exit;
}
?>
更新:调试步骤#1
在你的php文件中修改一个代码,如果出现任何错误信息,告诉我们。
if(@$_REQUEST["Submit"]=="Update")
{
$sql="update users set password ='$_REQUEST[newpassword]' where user='$_SESSION[myusername]'";
if (!mysql_query($sql)) die('err: PROBLEM IN QUERY: '.mysql_error());
header("Location:changpass.php?msg=updated");
}
else
die('err: PROBLEM IN REQUEST');