header ("Location: $rul"); problem in mod

[rdoylelmt]

I turned on a weblinks mod and entered the weblinks and when I go to click on a link it displays a blank page in a seperate window.

My hosted site is running:
OS RedHat Linux 7.2
Apache version 1.3.27 (Unix)
PHP version 4.3.1
MySQL version 3.23.54

The error messages displayed are:

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/rdoyle/public_html/config.php:130) in /home/rdoyle/public_html/open_session.php on line 3

Warning: Cannot modify header information - headers already sent by (output started at /home/rdoyle/public_html/config.php:130) in /home/rdoyle/public_html/mod/weblink/index.php on line 26

I suspect part of the problem is that my site has the newest version of PHP and the code needs to be altered.

I am learning about PHP but do not know how to alter this. I've pasted part of weblink/index.php below.

Thanks for your suggestions,

Robb
volunteer: webmaster(at)amtaga.org

/**
 * The main control structure for the weblink module
 *
 * Contains operations control for the user and admin
 *
 * @author Steven Levin <[e-mail]>
 * @module weblink
 * @modulegroup core
 * @package phpWebSite
 */


/* weblink files */
include("./mod/weblink/weblink.php");
include("./mod/weblink/weblink_functions.php");

/* phpwebsite core files */
include("./config.php");
if(!isset($mainfile)) include("./mainfile.php");
include("./open_session.php");

if($op=="visit_link") {
	mysql_query("UPDATE " . $table_prefix . "mod_weblink_data SET hits=hits+1 WHERE lid='$lid'");
	header("Location: $url");
	exit();
}

session_register("current_link");

/* start of page */
include("header.php");

 

[jnuneznyc]

You need to start the session first... I have no idea what weblinks is or if it uses session but type the following at the top of the php file...

session_start();

[rdoylelmt]

Nope, that is not the solution (I tried it and it did not correct the problem).

session_start(); is in the include:

include("./open_session.php");

I was wondering if PHP4.3.1 was producing a conflict with the code in this mod which was written over 6 months ago. Being a newbie it has extremely difficult for me to troubleshoot this.

(The developers at the university have pretty much abandoned supporting code dealing with the older version phpws .8.3, due to the fact that they have newly released phpws .9.0 which is new from the ground up abandoning the nuke legacy code.)

Thanks any other suggestions would be greatly appreciated,
Robb