header location doesnt work in php 5.3.21

Question

My header location fails to work on a server wich uses php 5.3.21. It does work on a localhost with 5.4.7. It is backwards compatible.. can anybody tell my why this is wrong?

switch ($table) {
    case "hardcover":
    header('location:hardcover.php?type=Aanvraag&relID='.$relID.'');
    break;
}

It is part of a switch case that decides where to go after you have entered a certain value from a HTML option list. When i echo $relID, and $table in the same case, it does echo the items. But somehow it wont redirect to the header..

Result from: ini_set("display_errors", "On");

Warning: Cannot modify header information - headers already sent by (output started at /customers/f/f/e/tdmdev.nl/httpd.www/graficrm/htmlheader.php:7) in /customers/f/f/e/tdmdev.nl/httpd.www/graficrm/aanvradd.php on line 47

Line 47 is the line where the header is located. Line 7 is where a session is echoed into html title area.

I found in PHP4 onwards that headers should be followed by an exit(); to stop the script continuing. (Which did happen) — Waygood, Feb 14 '13 at 08:50
@Waygood - If you want the script to terminate, you need that exit()... I've seen too many security flaws where people use header() to redirect to an error page, but don't exit afterwards, so the entire script still runs before the redirect can take effect — Mark Baker, Feb 14 '13 at 08:52
Add this line at the top of your page: `ini_set("display_errors", "On");` then post the output so that we could close the question as a duplicate. — Salman A, Feb 14 '13 at 08:54
[Check this out](http://stackoverflow.com/questions/8028957/headers-already-sent-by-php/8028987#8028987). And i think the last part of the header must be : `'.$relID."'");` — HamZa, Feb 14 '13 at 09:00
@HamZa DzCyberDeV Tried it, still no result header("Location:hardcover.php?type=Aanvraag&relID='".$relID."'"); — SliQz, Feb 14 '13 at 09:09
@HamZa DzCyberDeV Thank you. The link to "Possible Duplicate" gave me the solution. — SliQz, Feb 14 '13 at 09:19
You're saying `Line 7 is where a session is echoed into html title area.` So you're already outputting data to the browser. You can't do that if you want to use `header()`. That is causing the problem. — w00, Feb 14 '13 at 16:29

score 1 · Accepted Answer · edited Feb 14 '13 at 09:18

1

Try ob_start() at the beginning of the page.

edited Feb 14 '13 at 09:18

Jens Erat

37,523
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answered Feb 14 '13 at 09:01

Kandarp Patel

1,045
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Could you tell me the use of this? since i never use any OB function? – SliQz Feb 14 '13 at 09:06

score 0 · Answer 2 · answered Feb 14 '13 at 08:57

0

switch ($table) {
    case "hardcover":
    header('Location:hardcover.php?type=Aanvraag&relID='.$relID.'');
    exit();   // <-stop and allow header to do its thang!
    break;
}

answered Feb 14 '13 at 08:57

Waygood

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Wish it worked.. still the same error (Located in question.) – SliQz Feb 14 '13 at 09:01

header location doesnt work in php 5.3.21

2 Answers2