PHP passing a variable with header redirect

Question

I am trying to pass a variable within a header link. I have tried below code

$name = "mike";

if($name != "lopan"){
        header("Location:error-page.php?$errorMssg=Please enter information?");
}

This page redirect to location but doesn't pass the variable that contains the message. But when i create a simple link with values like this:

<a href="error-page.php?$errorMssg=so what happened there buddy?">link</a>

it passes it just fine.

Any ideas what i am doing wrong? or i can not pass information with headers?

You don't need the $ character in the URL

GordonM
– GordonM

2012-04-06 20:12:26 +00:00
Commented Apr 6, 2012 at 20:12 — GordonM
– GordonM, Commented Apr 6, 2012 at 20:12

Benjamin Crouzier · Accepted Answer · 2012-04-06 20:14:23Z

13

You need to use urlencode like this:

if($name != "lopan"){
        header("Location:error-page.php?errorMssg=".urlencode("Waoo so your not EVEN going to try to enter information huh?"));
}

And in error-page.php, you should get it (no need to urldecode):

<?php
$errorMssg = $_GET['errorMssg'];

answered Apr 6, 2012 at 20:14

Benjamin Crouzier

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2 Comments

somdow Over a year ago

Lols, is this a header thing as far as not adding the "$" in the link or??? because when i did a regular link with it, it passed just fine.

Benjamin Crouzier Over a year ago

You don't need any $'s when passing arguments in urls. You need a ? to indicate the beginning of the parameters, and a & between each, like this: http://example.com?foo=bar&baz=baz. Don't confuse this with the PHP variables that start with a $.

Josh · Accepted Answer · 2012-04-06 20:13:08Z

5

Remove the $ before errorMssg and urlencode the message.

edited Apr 6, 2012 at 20:13

Josh

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answered Apr 6, 2012 at 20:11

kontur

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Comments

mkk · Accepted Answer · 2012-04-06 20:14:23Z

1

could it be because you have $errorMssg instead of $errorMsg ? also try to make a valid url, for example replace " " with %20 etc, function urlencode() could help you with this.

answered Apr 6, 2012 at 20:14

mkk

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