Problems with the native session

[eluser]Zorancho[/eluser]
Hi there, i have MY_Controller in the libraries folder and in its constructor i am starting a native session like this:
class MY_Controller extends Controller
{
public function MY_Controller()
{
parent::__construct();
session_start();
}
}

It worked well on my server, but then i put the application on real server and it gets me this error:
A PHP Error was encountered

Severity: Warning

Message: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at system/application/libraries/MY_Controller.php:1)

Where i am suppose to start the session before any output starts?
Thanks in advance
Zoran

[eluser]Dam1an[/eluser]
I would just put the session_start() in the index.php file
That way you know its going to start before anything else

[eluser]Zorancho[/eluser]
Message: Cannot modify header information - headers already sent by (output started at /home/bpetrusev/servis/system/application/libraries/MY_Controller.php:1)

Filename: libraries/Session.php

Line Number: 662

I removed the autoloading of the session library and i am using only native sessions, but i still get this error:

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/bpetrusev/servis/system/application/libraries/MY_Controller.php:1)

Filename: helpers/url_helper.php

Line Number: 541

[eluser]Dam1an[/eluser]
Are you sure you don't have any whitespace in MY_Controller on line 1?

Out of curiosity, why are you using native sessions over CI sessions?

[eluser]Zorancho[/eluser]
I will do all of it with the CI Sessions.. but this is how my controller looks like
<?php if(!defined('BASEPATH')) exit('No direct script access allowed');

class MY_Controller extends Controller
{
public function MY_Controller()
{
parent::__construct();
}

public function destroy_sess()
{
$this->session->sess_destroy();
unset($_SESSION['userid']);
unset($_SESSION['logged_in']);
unset($_SESSION['role']);
redirect('servis/');
}
}

[eluser]Zorancho[/eluser]
I even deleted MY_Controller, but still was getting this error again:
Message: Cannot modify header information - headers already sent by (output started at /home/bpetrusev/servis/system/application/libraries/MY_Controller.php:1)
And i am doing update and commit via svn, but i am still getting the error like MY_Controller still exists. I checked everywhere, but it still gives me the same error.

[eluser]TheFuzzy0ne[/eluser]
Either your browser is caching the page, or you're editing the files in the wrong location. If MY_Controller.php has been deleted, then it can't possibly be causing an error, can it?

[eluser]Dam1an[/eluser]
[quote author="TheFuzzy0ne" date="1242853291"]Either your browser is caching the page, or you're editing the files in the wrong location. If MY_Controller.php has been deleted, then it can't possibly be causing an error, can it?[/quote]

Well, it would be causing an error saying it can't be found
But thats not the error we're getting here :-S

[eluser]TheFuzzy0ne[/eluser]
I meant in the sense that the error is occurring inside the supposedly deleted script. Don't be so facetious!

[eluser]rameners[/eluser]
autoload session then forget about calling session_start(), it does the job for me... in this way you can use both the CI session and native sessions, IMO -> i think you autoload the session then calling again session_start() would cause the error.