Hi! friend,
    I want to start session if authentication is succesfull means if he is a valid user.
Then what i have to do Renze??
 
Thanks in advance.
 
With warm regards
-Balaji
----- Original Message -----
Sent: Monday, August 13, 2001 2:04 PM
Subject: Re: [PHP] plz check the warning message

On Mon, Aug 13, 2001 at 02:01:59PM +0530, Balaji Ankem wrote:
> Hi! Renze,
>      Thanks a lot for u'r help. I am in vacation up to now.
>   Now i am trying with u'r solution. I am getting the following error.
> I am sending the file also.
>
> Warning: Cannot send session cache limiter - headers already sent in c:\www\authentication.php on line 34
>
>
> File:authentication.php
> <?php
> header ("Cache-Control: no-cache, must-revalidate");
> header ("Pragma: no-cache");
>
>   error_log ("emp_id: $emp_id", 0);
>   error_log ("Lastname: $emp_pass", 0);
>
>     // Connect to MySQL
>
>     mysql_connect( 'localhost', 'balaji', 'pingpong' )
>         or die ( 'Unable to connect to server.' );
>
>     // Select database on MySQL server
>
>     mysql_select_db( 'imac' )
>         or die ( 'Unable to select database.' );
>
>     // Formulate the query
>
>     $sql = "SELECT * FROM employee WHERE
>             emp_id = '$emp_id' AND  emp_pass = '$emp_pass'";
>
>     // Execute the query and put results in $result
>
>     $result = mysql_query( $sql )
>         or die ( 'Unable to execute query.' );
>
>     // Get number of rows in $result.
>
>     $num = mysql_numrows( $result );
>
>     if ( $num != 0 ) {
>         // A matching row was found - the user is authenticated.
>         session_start();
>         session_register('$emp_id');
>
>         $row = mysql_fetch_object($result);
>
>   if ($row->user_type=='S')
>   {
>               include('super.php');
>
>   }
>   else if ($row->user_type=='O')
>   {
>      include('ordinary.php');
>
>   }
>   }
>
>   else
>   {
>    file://User does not exist or not authenticated.
>    echo '<center><h1>Authorization Required.</h1></center>';
>    file://header( 'WWW-Authenticate: Basic realm="Private"' );
>    file://header( 'HTTP/1.0 401 Unauthorized' );
>    exit;
>      }
>
> ?>


Well... You can't sent any headers after some output has already
been sent. I didn't take a very good look at your code, but looking
at the warning you get and the position of session_start() in your
code, I'd say you have to move the session_start() up. You can best
start your code with session_start() and then the rest of your
script.


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