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I'm very new to php and trying to build a redirect which uses parameters from a URL which will differ from person to person.
The URL a person will access looks like: www.website1.com/redirect.php?p=p123&r=4&s=567
The p, r, and s will change for each person
I then want to redirect them to some other site that looks like this:
www.website2.com/p123.aspx?r=4&s=567
Here is what I have so far, but it's giving me an error "Cannot modify header information - headers already sent by ..."
<html>
<?php
$fpvalue = $_GET['p'];
$frvalue = $_GET['r'];
$fsvalue = $_GET['s'];
header("Location: http://website2.com/".$fpvalue.".aspx?r=".$frvalue."&s=".$fsvalue);
?>
</html>
I would really appreciate the help for a beginner.
Thanks!
478
asked Oct 24 '25 17:10
You can't do a redirection when you have been sent a "content" (text, html, space, wherever). You should NOT do this before calling the header() function.
As you can see, you have a "" before calling the header() function.
Change that:
<html>
<?php
$fpvalue = $_GET['p'];
$frvalue = $_GET['r'];
$fsvalue = $_GET['s'];
header("Location: http://website2.com/".$fpvalue.".aspx?r=".$frvalue."&s=".$fsvalue);
?>
</html>
For that:
<?php
$fpvalue = $_GET['p'];
$frvalue = $_GET['r'];
$fsvalue = $_GET['s'];
header("Location: http://website2.com/".$fpvalue.".aspx?r=".$frvalue."&s=".$fsvalue);
exit;
?>
<html>
</html>
And remember: Check if there is another previous space or "new line" before the "< ?php " tag.
155
The error "Cannot modify header information - headers already sent by ..." caused when you place session_start or php header below other codes, e.g. html then you should change into:
<?php
//your php codes
//....
?>
<!DOCTYPE html>
....etc.
This must work
21
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