我照书上写的一个php会员登录的网页，主页可以打开，但跳转后总提示 Undefined variable
自己弄了1天了，该改的地方都改了，求助各位
具体错误代码如下：( ! ) Notice: Undefined variable: username in D:\wamp\www\myphp\chekmember.php on line 4
Call Stack
# Time Memory Function Location
1 0.0004 368384 {main}( ) ..\chekmember.php:0 ( ! ) Notice: Undefined variable: userpasswd in D:\wamp\www\myphp\chekmember.php on line 4
Call Stack
# Time Memory Function Location
1 0.0004 368384 {main}( ) ..\chekmember.php:0
登录失败！请重新登录代码如下：
//member.php
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>会员登录</title>
</head><body>
<table width="36%" border="0" cellspacing+"1" cellpadding="1">
<form name="form1" method="post" action="chekmember.php">
<tr>
<td colspan="2"><div align="center">会员登录</div></td>
</tr>
<tr>
<td width="34%" nowrap><div align="right">账号：</div></td>
<td width="66%"><input name="username" type="text" id="username"></td>
</tr>
<tr>
<td nowrap><div align="right">密码：</div></td>
<td><input name="userpasswd" type="text" id="userpasswd"></td>
</tr>
<tr>
<td colspan="2">
<div align="center">
<input type="submit" name="Sucmit" value="发送">
</div>
</td>
</tr>
</form>
</table>
</body>
</html>//chekmember.php<?php
include "member_class.php";
$member=new member_class;
$adapt=$member->chkpasswd($username,$userpasswd);
if($adapt==true)
{
echo "您的账号为： ".$member->name;
echo "您的密码为： ".$member->passwd;
}else
{
echo "请重新登录";
}
?>
//member_class.php
<?php
class member_class
{
var $name="guan";
var $passwd="89473946";
var $adopt=false;
function chkpasswd($tname,$tpasswd)
{
if($tname==$this->name&&$tpasswd==$this->passwd)
{
echo "通过登录！";
$this->adopt=true;
}else
{
echo "登录失败！";
$this->adapt=false;
}
return $this->adapt;
}
}
?>
自己弄了1天了，该改的地方都改了，求助各位
具体错误代码如下：( ! ) Notice: Undefined variable: username in D:\wamp\www\myphp\chekmember.php on line 4
Call Stack
# Time Memory Function Location
1 0.0004 368384 {main}( ) ..\chekmember.php:0 ( ! ) Notice: Undefined variable: userpasswd in D:\wamp\www\myphp\chekmember.php on line 4
Call Stack
# Time Memory Function Location
1 0.0004 368384 {main}( ) ..\chekmember.php:0
登录失败！请重新登录代码如下：
//member.php
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>会员登录</title>
</head><body>
<table width="36%" border="0" cellspacing+"1" cellpadding="1">
<form name="form1" method="post" action="chekmember.php">
<tr>
<td colspan="2"><div align="center">会员登录</div></td>
</tr>
<tr>
<td width="34%" nowrap><div align="right">账号：</div></td>
<td width="66%"><input name="username" type="text" id="username"></td>
</tr>
<tr>
<td nowrap><div align="right">密码：</div></td>
<td><input name="userpasswd" type="text" id="userpasswd"></td>
</tr>
<tr>
<td colspan="2">
<div align="center">
<input type="submit" name="Sucmit" value="发送">
</div>
</td>
</tr>
</form>
</table>
</body>
</html>//chekmember.php<?php
include "member_class.php";
$member=new member_class;
$adapt=$member->chkpasswd($username,$userpasswd);
if($adapt==true)
{
echo "您的账号为： ".$member->name;
echo "您的密码为： ".$member->passwd;
}else
{
echo "请重新登录";
}
?>
//member_class.php
<?php
class member_class
{
var $name="guan";
var $passwd="89473946";
var $adopt=false;
function chkpasswd($tname,$tpasswd)
{
if($tname==$this->name&&$tpasswd==$this->passwd)
{
echo "通过登录！";
$this->adopt=true;
}else
{
echo "登录失败！";
$this->adapt=false;
}
return $this->adapt;
}
}
?>
<?php
include "member_class.php";
$member=new member_class;
$username = $_POST['username'];
$userpasswd = $_POST['userpasswd']; //加上这两行获取表单数据
$adapt=$member->chkpasswd($username,$userpasswd); //问题在这一行，$username变量未定义
if($adapt==true)
{
echo "您的账号为： ".$member->name;
echo "您的密码为： ".$member->passwd;
}else
{
echo "请重新登录";
}
?>
register_globals = On不过强烈不建议这么做，原因是：