I wrote a script in PHP that works fine on its own, but when inserted into a document containing CSS does not work properly. I am a newb with the PHP programming, and what I am trying to do is create a simple register/login script. Once the user has successfully logged in I used the "header" command to redirect them to the rest of the site. I tested the code in the page with CSS and the header command did not work. I also placed the code in a blank document and upon successful login It did work. Does anyone know if the CSS is what is causing the problem here? Also, the code placed in the non-css document was copied directly from the css document, and the extensions for both is .php.

The header function must be used before any output is printed, i.e before the opening HTML tag, make sure there is no HTML code or echo/print functions before the header one.

There is nothing like that before the header function. As I said, the same exact code works on one page, but not on the one with the CSS layout. I am also using Dreamweaver CS3 if that helps.

Are you adding the PHP code to the top of the HTML/CSS file or using an include function? Can you post the code here?

It is running at the top of the document. I withheld all of the sql connection code because its a pain to hand copy it all ( i'm running the code on a separate machine than the one connected to the internet...).

Here is the code in a nutshell

<?php

sql connection stuff...

$username = $_POST['usern'];
$password = $_POST['pass'];

if($_POST['submit'])
{
$loginresults = mysql_query("SELECT *FROM registrations WHERE username = '$username' AND password = '$password' ")
or die (mysql_error());

$login_check = mysql_num_rows($loginresults);

if($login_check>0)
{
header('Location:http://localhost/portfolio.php');
}
}

There doesnt seem to be a problem with the code, but for the header function, try to use a relative link and not http://localhost:

On the page that it is not working is the PHP code on there or is it in a seperate file. Also, does the script return an error such as 'Headers already sent by...'?

The PHP is on the page, not on a separate file. It also returns no errors, but that may be because it returns them underneath the CSS tables if it does.

Have a look at the source code through your browser to see if there are any errors hidden beneath tables/elements.

If there are not add something similar to the following to see if the SQL query is causing an issue:

After creating yet another test page, this time with 3 simple html tables, it also does not work. I am now convinced that it is the tables that is botching my code.

So long as the PHP code comes before anything else in the file, the HTML/CSS should not effect it. If there is any HTML before the PHP then the headers are sent and cannot be modified with the header function.

Can you post the entire source here in [CODE ] [ /CODE] tags?