Session - headers Error

**d-machine** · 09-21-2008, 04:58 PM

Hi,

I don't know how to deal with this error:

PHP Code:


Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at XXX.php:15) in XXX.php on line 4

my php source code:

PHP Code:


<?php



function username($num){

  session_start();

  $_SESSION['username']=$num;

}



?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>my trial page</title>

</head>

<body>

<?php include ("sidebar.inc") ?>

bla bla

<?php

username(3);

?>

</body>

</html>

**Nile** · 09-22-2008, 03:35 AM

http://us3.php.net/ob_start
I hope that helps you.

**Moshambi** · 09-22-2008, 04:35 AM

I just do this for every file:

Code:

<?php session_start(); ?>

<?php

// Other code here

?>

If I put it on the top line like that by itself before anything else it seems to work perfectly. I am not sure if this is good or bad coding practice though, as I am still new to PHP. Hope this helped.

**d-machine** · 09-22-2008, 04:01 PM

Thank you both very much !!

Now it is working great !

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