PHP Header Redirect problem (no, not that common problem)

0
votes

Firstly, this is not the headers already sent' problem.

I have an include file, that does the redirect. This works on every server I have tried it on except the production server, which runs windows.

When I run it on the production server, it only redirects the include file, not the entire page.

I have the main file, index.php:

<?php include('red.php'); ?>
<html ....
>

And I do the redirect to another page in red.php. Then the redirected page will show up at the top of the index.php page, with the rest of the index.php html file after this page.

Have the mess up some setting in php.ini?

After some more investigation, the problem is when I use a full URL rather than a relative URL. The first will only redirect the included file. (the problem I discovered above)

while the second works correctly

red2.php:



header("Location: http://example.com/newfile.php");
    header("Location: newfile.php");'
2
phpredirect
Can you walk through the process in sequence. Please tell us how you have each file set up, what they are doing (including the code), why you are doing that, and what happens on your production server and on your development server when you try these things. – Ollie Saunders

2 Answers

1
votes

When I run it on the production server, it only redirects the include file, not the entire page.

That's a funny thing to say because it's not really possible. Only a single blob of data is presented to the browser you can't "redirect" part of it but you can include from multiple files in order to produce a composite blob.

Perhaps, this is what you're doing. Perhaps you're doing an include instead of a redirect. Remember a redirect is done like this:

header('Location: file.php');
exit;

The exit at the end is recommended so execution doesn't continue unnecessarily.

0
votes

John,

I think you're confused on what happens on the client vs what happens on the server.

When you call include(), the server will search on its local file system for the file you're including, and will simply run through it and execute it line by line.

Now when you call the Header() function in php, this alters the header data that the browser will receive. The redirection will therefore be done at the browser level, and not the server level.

That means that having the following code doesn't really make sense:

<?php
# Doesn't matter if you call it through include() or directly
Header("Location: http://example.com/newfile.php");
?>
<html><p>Hello world</p></html>

It's like you're telling the browser: You'll need to redirect to newfile.php, but here's some HTML contents anyways for you to display.

If you want to include newfile.php on the server side, you need to use either Server Side Includes, CURL or just include("remote_file"); (you'll need to alter your security settings in php.ini for the latter to work if the remote_file is sitting on another server, namely allow_url_fopen)

Hope it helps