<?php
session_start();
if(!isset($_session['passed']))
{
$_session['passed']=0;
}
echo $_session['passed'];
echo $_session['unm'] . "aa"; if ($_session['passed']==1)
{
exit();
}
if($_session['passed']==0)
{
$unm=$_POST['unm'];
$upwd=$_POST['upwd'];
$chkpw=$_POST['chkpw'];
#echo $unm;
// if ($chkpw=="send")
if($unm!="")
{
require "conf.php";
$connection=mysql_connect($host,$user,$pass) or die("unable to connect!");
mysql_select_db($db) or die("unable to select database "); $query1="select count(*) from czy where mc = '" . $unm . "' and mm='" . $upwd . "'"; $result=mysql_query($query1) or die("error sql to exec");
$row=mysql_fetch_row($result);
#echo $query1;
if ($row[0]>0)
{
$_session['passed']=1;
$_session['unm']=$unm;
$unm="";
echo $_session['passed'];
echo $_session['unm'];
mysql_free_result($result);
#print "<BR><BR><BR><BR><BR><BR><div align=center>登录成功,系统将自动返回,或点击<a href='index.php'>这里</a>立即返回</div>";
#print '<meta http-equiv="refresh" content="0;URL=index.php">';
#header("Location: index.php");
exit("");
}
else
{
$Errmsg="用户名或密码不正确";
mysql_free_result($result);
}
}
} if(!$_session['passed'])
{
?>
<html>
<head>
<script type="text/javascript" language="JavaScript1.2" src="js\menu.js"></script>
</head>
<body>
<table width="1000" border="0" align="center" cellpadding="0" cellspacing="1">
<tr>
<td><script type="text/javascript" language="JavaScript1.2" src="js\top.js"></script>
</td>
</tr>
</table>
<script language="javascript">
function CheckForm()
{
if(document.form1.unm.value=='')
{
alert('\n请输入用户名!\n');
document.form1.unm.focus();
return false;
}
if(document.form1.upwd.value=='')
{
alert('\n请输入密码!\n');
document.form1.upwd.focus();
return false;
}
}
</script>
<table width="1000" align="center" border="0" cellspacing="1" cellpadding="0">
<tr>
<td width="500" colspan="2"><?PHP echo($Errmsg); ?></td><?php echo $query1; ?>
</tr>
<form id="form1" name="form1" method="POST" action="<?PHP $_SERVER['PHP_SELF'] ?>" onsubmit="return CheckForm();">
<tr>
<td width="80">用户名:</td>
<td width="417">
<!-- <input type="text" name="unm"> -->
<SELECT NAME="unm">
<?php
require "conf.php";
$connection=mysql_connect($host,$user,$pass) or die("unable to connect!");
mysql_select_db($db) or die("unable to select database "); $query1="select mc from czy"; $result=mysql_query($query1) or die("error sql to exec");
if (mysql_num_rows($result)>0 )
{
while ( $row=mysql_fetch_row($result))
{
echo "<option value=" . $row[0] . ">" . $row[0] . "</option>";
}
}
else
{
echo "no rows found !";
}
mysql_free_result($result);
?>
</SELECT>
</td>
</tr>
<tr>
<td>密 码:</td>
<td><input type="password" name="upwd"></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="Submit" value=" 登录 ">
<input type="hidden" name="chkpw" value="send">
<input type="button" name="Submit2" value=" 关闭 " onclick="self.close()"></td>
</tr>
</form></table>
</HTML>
<?PHP
exit("");
}
?>比方登录admin,密码1111正确后,打印出来是0aa 1admin 请问为什么
session_start();
if(!isset($_session['passed']))
{
$_session['passed']=0;
}
echo $_session['passed'];
echo $_session['unm'] . "aa"; if ($_session['passed']==1)
{
exit();
}
if($_session['passed']==0)
{
$unm=$_POST['unm'];
$upwd=$_POST['upwd'];
$chkpw=$_POST['chkpw'];
#echo $unm;
// if ($chkpw=="send")
if($unm!="")
{
require "conf.php";
$connection=mysql_connect($host,$user,$pass) or die("unable to connect!");
mysql_select_db($db) or die("unable to select database "); $query1="select count(*) from czy where mc = '" . $unm . "' and mm='" . $upwd . "'"; $result=mysql_query($query1) or die("error sql to exec");
$row=mysql_fetch_row($result);
#echo $query1;
if ($row[0]>0)
{
$_session['passed']=1;
$_session['unm']=$unm;
$unm="";
echo $_session['passed'];
echo $_session['unm'];
mysql_free_result($result);
#print "<BR><BR><BR><BR><BR><BR><div align=center>登录成功,系统将自动返回,或点击<a href='index.php'>这里</a>立即返回</div>";
#print '<meta http-equiv="refresh" content="0;URL=index.php">';
#header("Location: index.php");
exit("");
}
else
{
$Errmsg="用户名或密码不正确";
mysql_free_result($result);
}
}
} if(!$_session['passed'])
{
?>
<html>
<head>
<script type="text/javascript" language="JavaScript1.2" src="js\menu.js"></script>
</head>
<body>
<table width="1000" border="0" align="center" cellpadding="0" cellspacing="1">
<tr>
<td><script type="text/javascript" language="JavaScript1.2" src="js\top.js"></script>
</td>
</tr>
</table>
<script language="javascript">
function CheckForm()
{
if(document.form1.unm.value=='')
{
alert('\n请输入用户名!\n');
document.form1.unm.focus();
return false;
}
if(document.form1.upwd.value=='')
{
alert('\n请输入密码!\n');
document.form1.upwd.focus();
return false;
}
}
</script>
<table width="1000" align="center" border="0" cellspacing="1" cellpadding="0">
<tr>
<td width="500" colspan="2"><?PHP echo($Errmsg); ?></td><?php echo $query1; ?>
</tr>
<form id="form1" name="form1" method="POST" action="<?PHP $_SERVER['PHP_SELF'] ?>" onsubmit="return CheckForm();">
<tr>
<td width="80">用户名:</td>
<td width="417">
<!-- <input type="text" name="unm"> -->
<SELECT NAME="unm">
<?php
require "conf.php";
$connection=mysql_connect($host,$user,$pass) or die("unable to connect!");
mysql_select_db($db) or die("unable to select database "); $query1="select mc from czy"; $result=mysql_query($query1) or die("error sql to exec");
if (mysql_num_rows($result)>0 )
{
while ( $row=mysql_fetch_row($result))
{
echo "<option value=" . $row[0] . ">" . $row[0] . "</option>";
}
}
else
{
echo "no rows found !";
}
mysql_free_result($result);
?>
</SELECT>
</td>
</tr>
<tr>
<td>密 码:</td>
<td><input type="password" name="upwd"></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="Submit" value=" 登录 ">
<input type="hidden" name="chkpw" value="send">
<input type="button" name="Submit2" value=" 关闭 " onclick="self.close()"></td>
</tr>
</form></table>
</HTML>
<?PHP
exit("");
}
?>比方登录admin,密码1111正确后,打印出来是0aa 1admin 请问为什么
$_session['unm']=$unm;
你这里把值改变了
echo $_session['passed'];
include "userlogin.php";结果session打印出来为空,和session大小写有没有关系啊,还是其他原因
我贴的就是密码验证程序,其他程序中
echo $_session['unm'];
echo $_session['passed'];
include "userlogin.php"; 是为了检查登录状况,怎么就不明白了呢