How I can print value in header function

Question

I had a small problem when I try to write this code.

header("Location: question.php?id='$qid'");

It prints this:

question.php?id='$qid

But this not what I want, I want to print the value of $qid,

Answer 1

header("Location: question.php?id=$qid");

should work

Answer 2

Recommended version:

header("Location: question.php?$qid");

This way trick also work for me if you separate as variable:

$redirect = 'question.php?'.$qid;
header('Location: '.$redirect);

It is also good to set type of redirecting HTTP status as:

header("Location: question.php?$qid", TRUE, 301);

Which means that it will moved permanently as status code 301 and replace a data to changed values. Please see PHP.net manual for header().

Don't forget to add exit(); status if you want to prevent for buffering output if you have some errors or unexpected stopped as sample:

header("Location: question.php?$qid", TRUE, 301);
exit();

Here is HTTP sample code on Wiki how it really works behind PHP header(): http://en.wikipedia.org/wiki/URL_redirection#HTTP_status_codes_3xx

Answer 3

header("Location: question.php?id='".$qid."'");