这个登陆页面为什么不能回到前一个URL？

alongalong 2004-08-11 10:35:28

<?php require_once('Connections/thw.php'); ?>
<?php
// *** Validate request to login to this site.
session_start();

$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($accesscheck)) {
$GLOBALS['PrevUrl'] = $accesscheck;
session_register('PrevUrl');
}

if (isset($_POST['textfield'])) {
$loginUsername=$_POST['textfield'];
$password=$_POST['textfield2'];
$MM_fldUserAuthorization = "";
MM_redire$ctLoginSuccess = "xz.htm";
$MM_redirectLoginFailed = "dlsb.htm";
$MM_redirecttoReferrer = true;
mysql_select_db($database_thw, $thw);

$LoginRS__query=sprintf("SELECT xm, mm FROM zc WHERE xm='%s' AND mm='%s'",
get_magic_quotes_gpc() ? $loginUsername : addslashes($loginUsername), get_magic_quotes_gpc() ? $password : addslashes($password));

$LoginRS = mysql_query($LoginRS__query, $thw) or die(mysql_error());
$loginFoundUser = mysql_num_rows($LoginRS);
if ($loginFoundUser) {
$loginStrGroup = "";

//declare two session variables and assign them
$GLOBALS['MM_Username'] = $loginUsername;
$GLOBALS['MM_UserGroup'] = $loginStrGroup;

//register the session variables
session_register("MM_Username");
session_register("MM_UserGroup");

if (isset($_SESSION['PrevUrl']) && true) {
$MM_redirectLoginSuccess = $_SESSION['PrevUrl'];
}
header("Location: " . $MM_redirectLoginSuccess );
}
else {
header("Location: ". $MM_redirectLoginFailed );
}
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
<style type="text/css">

</style>
<script language="JavaScript" type="text/JavaScript">

</script>
</head>

<body>

<p><span class="style2"><span class="style3">如果您还没有注册，请您先</span>    <a href="zc.php"><span class="style1">注册</span></a></span></p>
<p> </p>
<p> </p>
<form ACTION="<?php echo $loginFormAction; ?>" method="POST" name="form1" onSubmit="MM_validateForm('textfield','','R');return document.MM_returnValue">
<p>                            <span class="style1">请登录您的     姓名
<input name="textfield" type="text" maxlength="10">
</span></p>
<p>                     <span class="style1"> 密码
<input name="textfield2" type="password" maxlength="10">
</span></p>
<p> </p>
<p>
<input type="submit" name="Submit" value="提交">
</p>
<p> </p>
<p> </p>
</form>
<p> </p>
</body>
</html>
每次都回到xz.htm,不回到前一URL？
xz.htm在第13行，MM_redire$ctLoginSuccess = "xz.htm";

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uuq 2004-08-13

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大家可能误解人家的意思了。
这样吧
add_member.php 文件
header("location:/member/login.php?returnurl=/add_member.php");
如：/add_member.php是本页的地址。这是绝对路径。也可以用相对路径
login.php 文件

if ($_GET[returnurl] == "") $gourl = "如果不指明，则go这里";
else $gourl = $_GET[returnurl];

。。。。验证

header($gourl);
或
echo "<script language='javascript'>";
echo "location=\"".$gourl."\";";
echo "</script>";

fzjw 2004-08-13

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有必要吗，你点上面的“管理”就有了

alongalong 2004-08-13

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想结帖，找不到给分按钮，怎么办？
CSDN是免费的，但免费的也不一定好，别人愿回答，就回答，不愿就不回答，也无可非议
我希望CSDN为我们菜鸟办一个付费的，按问题难度报价，用真钱交易，可能给我们菜鸟更好，更需要的服务。
要求置顶

alongalong 2004-08-11

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： xuzuning(唠叨) ( ) 老大；
前一页，是某一受限制页，当没有登陆打开受限制页时，转到此页，但登录后不能自动回到受限制页了？

pfc001 2004-08-11

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学习

xuzuning 2004-08-11

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再有：
$loginUsername和$password 是哪里来的？
如果是提交的，那么应确认register_globals=on
否则要用$_POST['loginUsername']和$_POST['password']

另外请检查表zc中是否有xm和mm为空的记录

当register_globals=off时，$loginUsername和$password为空
查询串变为：SELECT xm, mm FROM zc WHERE xm='' AND mm=''
此时若表中有xm和mm为空的记录则mysql_num_rows($LoginRS) >= 1

xuzuning 2004-08-11

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1、“前一URL”是什么？在哪里得到的？
2、检查
$LoginRS__query=sprintf("SELECT xm, mm FROM zc WHERE xm='%s' AND mm='%s'",
get_magic_quotes_gpc() ? $loginUsername : addslashes($loginUsername), get_magic_quotes_gpc() ? $password : addslashes($password));
的内容
3、header后应有exit，否则页面后续内容依然会输出

张海霖 2004-08-11

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if (isset($_SESSION['PrevUrl']) && true) {
一定不是不会执行到。为什么,你得调试一下。
}

fzjw 2004-08-11

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自己写一个登录验证页面，我的就是自己写的，在首页以外的页面登录，在登陆页面中用隐藏域记录页面地址，登录验证中判断是否有url变量，有，则跳转到url，没有，则显示默认页

fzjw 2004-08-11

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这个一定是用DW做的页面

alongalong 2004-08-11

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session_start();
$MM_authorizedUsers = "";
$MM_donotCheckaccess = "true";

// *** Restrict Access To Page: Grant or deny access to this page
function isAuthorized($strUsers, $strGroups, $UserName, $UserGroup) {
// For security, start by assuming the visitor is NOT authorized.
$isValid = False;

// When a visitor has logged into this site, the Session variable MM_Username set equal to their username.
// Therefore, we know that a user is NOT logged in if that Session variable is blank.
if (!empty($UserName)) {
// Besides being logged in, you may restrict access to only certain users based on an ID established when they login.
// Parse the strings into arrays.
$arrUsers = Explode(",", $strUsers);
$arrGroups = Explode(",", $strGroups);
if (in_array($UserName, $arrUsers)) {
$isValid = true;
}
// Or, you may restrict access to only certain users based on their username.
if (in_array($UserGroup, $arrGroups)) {
$isValid = true;
}
if (($strUsers == "") && true) {
$isValid = true;
}
}
return $isValid;
}

$MM_restrictGoTo = "Untitled-4.php";
if (!((isset($_SESSION['MM_Username'])) && (isAuthorized("",$MM_authorizedUsers, $_SESSION['MM_Username'], $_SESSION['MM_UserGroup'])))) {
$MM_qsChar = "?";
$MM_referrer = $_SERVER['PHP_SELF'];
if (strpos($MM_restrictGoTo, "?")) $MM_qsChar = "&";
if (isset($QUERY_STRING) && strlen($QUERY_STRING) > 0)
$MM_referrer .= "?" . $QUERY_STRING;
$MM_restrictGoTo = $MM_restrictGoTo. $MM_qsChar . "accesscheck=" . urlencode($MM_referrer);
header("Location: ". $MM_restrictGoTo);
exit;
}
这是前一页的代码