[PHP-WIN] Problem retrieving form elements value on php

[Krushna Kumar]

Dear All,

I have a HTML form and take user name and password, on submitting I try to validate 
the value on the next file, but the input form element values are not retrieved on the 
following file, I have provided the code I have written, Kindly help me trace the 
error.



Php version used - 4.2.3 and o/s windows NT4.0

Step 1

I have a HTML form with the following code


file - adminlogin.php
========================================================================================
      <form name="frmadminlogin" method="post" action="admin.php">
        <table width="70%" border="0" cellspacing="0" cellpadding="0" align="center">
          <tr> 
            <td bgcolor="#fde9ac"> 
              <div align="center"><font color="#990000" size="3"><b>ADMIN 
LOGIN</b></font></div>
            </td>
          </tr>
          <tr> 
            <td> 
              <table width="100%" border="0" cellspacing="0" cellpadding="0">
                <tr bgcolor="#FFFFD7"> 
                  <td width="10">&nbsp;</td>
                  <td>&nbsp;</td>
                  <td>&nbsp;</td>
                </tr>
                <tr bgcolor="#FFFFD7"> 
                  <td width="10">&nbsp;</td>
                  <td><font color="#000000">LOGIN</font></td>
                  <td><font color="#000000"> 
                    <input type="text" name="txtuser">
                    </font></td>
                </tr>
                <tr bgcolor="#FFFFD7"> 
                  <td>&nbsp;</td>
                  <td><font color="#000000">PASSWORD</font></td>
                  <td><font color="#000000"> 
                    <input type="password" name="txtpassword">
                    </font></td>
                </tr>
                <tr bgcolor="#FFFFD7">
                  <td colspan="3">&nbsp;</td>
                </tr>
                <tr bgcolor="#FFFFD7"> 
                  <td colspan="3"> 
                    <div align="center"><font color="#000000"></font><font 
color="#000000"> 
                      <input type="submit" name="submit" value="Login">
                      <input type="reset" name="Reset" value="Reset">
                      </font></div>
                  </td>
                </tr>
              </table>
            </td>
          </tr>
        </table>
      </form>
======================================================================================================

step 2 : I am trying to retrieve the values from the form in php using the code and 
check whether username and password are correct

file name - admin.php
======================================================================================================
if (($txtuser=='user') && ($txtpassword=='password'))
{
 //echo '<br>login success';
}
else
{
 //echo 'login failure';
 header('adminlogin.php?login=F');
}

======================================================================================================


Error : I get the following error when I submit the step 1 form and while trying to 
retrieve the form element(input) value on the second form for validation. kindly help

======================================================================================================
Notice: Undefined variable: txtuser in E:\projects\jkfiles\admin.php on line 2

======================================================================================================




Regards
Krushna