__autoload()

[c_pattle]

I'm trying to use the autoload class but am having some trouble.  Here is my autoload class,

 

function __autoload($class_name) {
    include("classes/" . $class_name . ".class.php");
}

 

The problem I am having is that when I include this class at the top of this page I then keep getting this error - "Warning: Cannot modify header information - headers already sent by" whenever I try to start a session or use the "header" function but I'm not sure why that's happening because surely I haven't echoed anything yet. 

 

Thanks for any help. 

[KevinM1]

Can you show an example of how/where you're including it?

[c_pattle]

Sure.  Here is my index page

 

<?php
require_once("includes/inc_theme.php");

session_start();
include("classes/autoloadClass.class.php");

 

By starting the session before I include the autoload class I don't get the error anymore but I still get the error when I try to use the header function late down the page. 

[KevinM1]

Does inc_theme.php render any output?

[PFMaBiSmAd]

Ummm. The part of the error message that states where the output is occurring at (file name and line number) would be kind of helpful in finding the output that is causing the problem.

[c_pattle]

Sorry.  If I change my index.php file to this

 

require_once("includes/inc_theme.php");
include("classes/autoloadClass.class.php");
session_start();

 

Then I get these error messages. 

 

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /var/www/webemail/classes/autoloadClass.class.php:9) in /var/www/webemail/index.php on line 4

 

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /var/www/webemail/classes/autoloadClass.class.php:9) in /var/www/webemail/index.php on line 4

 

It's saying that the error is appearing on line 9 of my autoload class put that line doesn't exist.  It only goes up to line 8.  This is my autoload class again. 

 

<?php

function __autoload($class_name) {
    include("classes/" . $class_name . ".class.php");
}

?>

[KevinM1]

'Headers already sent' errors usually indicate that you have some output being rendered before you attempted session_start, which is why I asked you if you if inc_theme.php rendered any output....

 

See also our clearly marked sticky topic at the top of this sub-forum: http://www.phpfreaks.com/forums/index.php?topic=37442.0

[PFMaBiSmAd]

You have at least one new-line character after the closing ?> tag in your autoloadClass.class.php file.

[c_pattle]

Sorry I forgot to mention that my inc_theme.php is not outputting anything to the screen.  Even when I comment out  that file include I still get the error. 

[c_pattle]

Problem solved though.  Thanks PFMaBiSmAd.  I had a new line character after ?>.  I didn't realise this would make difference though.