如何在这个Php代码中纠正错误 [英] How Shld I Correct The Error Here In This Php Code

问题描述

注意：未定义的索引：第9行的E：\ xampp \ htdocs \tnou \ forum \ login.php中的studentid



注意：未定义的索引：第9行的E：\ xampp \ htdocs \tnou \ forum \ login.php中的adminid



注意：未定义的索引：staffid in E：\ xampp\htdocs \tnou \ forum \ login.php第9行



代码：

Notice: Undefined index: studentid in E:\xampp\htdocs\tnou\forum\login.php on line 9

Notice: Undefined index: adminid in E:\xampp\htdocs\tnou\forum\login.php on line 9

Notice: Undefined index: staffid in E:\xampp\htdocs\tnou\forum\login.php on line 9

Code :

<?php

session_start();

require_once("forumtop.php");

include '../include/alljs.php';     /* this file contains all javascript function used in the project */

include '../include/allfunction.php';





/* if user already logged in then no need to display login form. so we redirect to index.php */

if($_SESSION['studentid']!=null || $_SESSION['adminid']!=null || $_SESSION['staffid']!=null)

{

    $url = "index.php";

    redirect($url);

}



?>

<h1 align="center">Welcome to TNOU Student Forum</h1><br><br>
<form id="ContactForm" action="loginprocess.php" method="post">
<table width="100%" border="0">

<tr>
<th colspan="2" align="center"><h2>Student Login</h2></th>
</tr>

<tr>
<td width="50%" align="right">Enrollment No.:</td>
<td width="50%" align="left">
<div class="bg">
<input type="text" name="txtenrolment"></div>
</td>
</tr>

<tr>
<td width="50%" align="right">Password:</td>
<td width="50%" align="left">
<div class="bg">
<input type="password" name="txtpassword" id="txtpwd"></div>
<label>
<input type="checkbox" name="pwdchk" id="pwdshw" onClick="pwdShow('txtpwd','pwdshw');">Show Password
</label>
</td>
</tr>

<tr>
<td width="50%" align="right">&nbsp;</td>
<td width="50%" align="left">
<label>
<a class="button"><span><span>
<input type="submit" value="Login">
</span></span>
</label>
</td>
</tr>

<tr>
<td width="50%" align="right">&nbsp;</td>
<td width="50%" align="left">
<a href="../common/forgetpassword.php?tbl=forum_member">Forget Password ?</a>
</td>
</tr>

<tr>
<td width="50%" align="right">&nbsp;</td>
<td width="50%" align="left">
<a href="newmember.php">Not a member ? Register Now</a>
</td>
</tr>

<tr>
<?php

if(isset($_GET['msg']))

{

    $val=$_GET['msg'];

    if($val==1)

    {

        $msg = "Student Login Required for using these feature..!!";

        $msgcolor="green";

    }

    else if($val==2)

    {

        $msg = "Enrollment No. or password incorrect. Please re-enter..!!";

        $msgcolor="red";

    }

    else if($val==3)

    {

        $msg = "You are Logged out Successfully!";

        $msgcolor="green";

    }

    else if($val=="membershipsuccess")

    {

        $msg = "Your Membership process completed successfully!";

        $msgcolor = "green";

    }

echo '<td colspan="2" align="center"><h3 style="color:'.$msgcolor.';">'.$msg.'</h3></td>';
}
?>
</tr>

</table>
</form>
<?php

require_once("forumbottom.php");

?>

推荐答案

_SESSION['studentid']!=null ||

_SESSION['studentid']!=null ||

_SESSION['adminid']!=null ||

_SESSION['adminid']!=null ||

_SESSION['staffid']!=null)

{

_SESSION['staffid']!=null) {

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