css / php error

Signpost · 28-03-2009 4:12pm #1

I have the following code on my page. When it is just the php it works perfectly. However when I add the html to apply the css it gives me this error:

Warning: Cannot modify header information - headers already sent by (output started at /home/jer/domains/jerlane.com/public_html/Live/changePassword.php:12) in /home/jer/domains/jerlane.com/public_html/Live/changePassword.php on line 55

THe code of the page is this:

<!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" />
<link rel="stylesheet" type="text/css" href="styles/stylesheet.css" />
<title>Carbon Metic Calculator - Insufficent Access</title>
</head>

<body>

<div class="wrapper">
<p align="center"> <img align="middle" src="images/HeaderOnly.jpg" /></p>
</div>

<?php
if(!isset($_COOKIE["user"]))
header('location:insufficientAcc.php');
$con=mysql_connect("localhost","jer_test","group11");
if(!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db('jer_test', $con);
if (!$db_selected){
die ('Can\'t use jer_test : ' . mysql_error());
}
$mypassword=$_POST['mypassword']; 
$newpassword=$_POST['newpassword']; 
$newpasswordc=$_POST['newpasswordc'];
$mypassword=stripslashes($mypassword);
$newpassword=stripslashes($newpassword);
$newpasswordc=stripslashes($newpasswordc);
$mypassword=mysql_real_escape_string($mypassword);
$newpassword=mysql_real_escape_string($newpassword);
$newpasswordc=mysql_real_escape_string($newpasswordc);
$user=$_COOKIE["user"];
$result=mysql_query("SELECT password FROM members WHERE username='$user'",$con);
$row=mysql_fetch_array($result);
$existingP=$row["password"];
$priv=$row["privilage"];
if($newpassword!=""){
if($mypassword!=$newpassword){
if($existingP==$mypassword){
if($newpassword==$newpasswordc){
mysql_query("UPDATE members SET password = '$newpassword' WHERE username = '$user'");
header('location:passChangeConfirm.php');
}

else{
echo "One of the entries of the new password was incorrect. Please click <a href=\"http://www.jerlane.com/Live/empChangePass.php\"> here</a> to try again";
}
}
else{

header('location:insufficientAcc.php');
}
}
else{
echo "Your old and new passwords are the same. Make them different. Please click <a href=\"http://www.jerlane.com/Live/empChangePass.php\"> here</a> to try again";
}

}
else{
echo "You must have a password! Please click <a href=\"http://www.jerlane.com/Live/empChangePass.php\"> here</a> to try again";
}
?>

</body>
</html>

Please help, this has me baffled for about an hour now...

louie · 28-03-2009 4:59pm

this should above all the code:
[php]
<?php
if(!isset($_COOKIE["user"]))
header('location:insufficientAcc.php');
:::::::::::::::::::::::::::::::::::::::::
[/php]

or add
[php]
ob_start();
[/php]
at the top of the page so no content is written to the browser before any checks are made...

Eoin · 28-03-2009 5:00pm

I don't know PHP, but my guess is that you can't do this stuff:
[php]header('location:passChangeConfirm.php');[/php]
once you have written HTML to the page.

I am not a fan of having big blocks of ASP or PHP in the middle of a document. I would move as much of it as possible to the top of the page so you can separate your HTML and PHP better.

Signpost · 29-03-2009 1:54am

how can i split the code that only the echo's would be surrounded by the <div>??

Eoin · 29-03-2009 2:02am

Instead of doing an echo, write to a variable instead.

Signpost · 29-03-2009 2:06am

good thinking! i likes it!

css / php error

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