Warning: Cannot modify header information

**ronverdonk** · Dec 12 '06, 09:50 AM

Pity you don't show us how you include the css.php. But the problem is definitely in that file. Look at the first statement in there

Code:

<?php ?>

that one generates a blank char to output and ... headers sent!
You should not use css in a php file. The usual way to include css is to have a separae CSS file, without any PHP statements or <style> statements and then do a

Code:

<link rel="stylesheet" href="file.css" type="text/css" />

So remove the first statement in the css file.

Ronald :cool:

**kempy535** · Dec 12 '06, 10:47 AM

My mistake! The css.php is called in all of the pages by,
[php]<?php require_once 'css.php';?>[/php]
It is under the <?php require_once 'config.php';?> on every page. Should I just use you code one the config page and then it will be called by the config page?

**kempy535** · Dec 12 '06, 11:49 AM

Okay it moaned when I put the css script link in the config file so I have put it in all the files. The error that I had has gone away :) but has been replaced by another:(
Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\Apache Group\Apache2\h tdocs\Rising sun\login.php:1 6) in C:\Program Files\Apache Group\Apache2\h tdocs\Rising sun\loginmeth.p hp on line 24
This is the code for the login in page;
[php]<?php require_once 'config.php';?>
<link rel="stylesheet " href="rscss.css " type="text/css" />
<html>
<body>
<br />
<br />
<br />
<br />
<br />
<table width="50%" border="1">
<tr>
<th scope="col"><h2 >Log In</h2> for existing customers</th>
<th scope="col"><h2 >Register</h2>if you are new to the site</th>
</tr>
<tr>
<td><?php include 'loginmeth.php' ;?></td>
<td><?php require_once 'regmeth.php';? ></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</table>
<?php echo "Item picked = ". $_SESSION['cartadd'];?>
</body>
</html>[/php]
And this is the loginmeth page;
[php]<?php require_once 'config.php';?>
<?php include 'opendb.php';?>
<?php $errorMessage = '';
if (isset($_POST['txtUserId']) && isset($_POST['txtPassword'])) {

$userId = $_POST['txtUserId'];
$password = $_POST['txtPassword'];
$_SESSION['userid'] = $userId;
// check if the user id and password combination exist in database
$sql = "SELECT *
FROM contactd
WHERE email = '$userId' AND password = PASSWORD('$pass word')";
//WHERE user_id = '$userId' AND user_password = PASSWORD('$pass word')";

$result = mysql_query($sq l)
or die('Query failed. ' . mysql_error());

if (mysql_num_rows ($result) == 1) {
// the user id and password match,
// set the session
$_SESSION['db_is_logged_i n'] = true;

// after login we move to the main page
header('Locatio n: test.php');
exit;
} else {
$errorMessage = 'Sorry, wrong user id / password';
}

}
?>
<?php include 'closedb.php';? >
// html table stuff after here[/php]

I dont understand why its complaining. Also it doesnt seem to link to the specifed page.

**ronverdonk** · Dec 12 '06, 04:19 PM

I am sure you still have some outputting in one of your scripts, e.g. config.php or still the css file? Even a simple blank is enough to kill it. Have a look for certain,

Ronald :cool:

Warning: Cannot modify header information

Warning: Cannot modify header information

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