PHP URL variable passing inconsistancy

I'm having trouble with the exact same php file in two different sections of my website. When i pass variables in one, it doesn't accept them. Usually I do something like ?variable=1, and then later on access it via something like if($variable > 0) and it will work fine. Now I made a subdomain, and I can't get it to work.

Here are the sites with and example file thats exactly the same:
http://dvereb.com/var.php?variable=lol
http://osms.dvereb.com/var.php?variable=lol

var.php consists of:
<?php
echo"\$variable: " . $variable;
?>

One site works, the other does not. Any ideas why?

OOPS! Just noticed that its because of an upgraded version of PHP. Is there a way to turn those global variables back on or do I have to use an older version of PHP? Also, by allowing these variables, would it cause a huge security problem?

Also, it says using $_POST['variable'] should work, but it will not work for me. I tried in var2.php (http://osms.dvereb.com/var2.php?variable=lol):
<?php
echo"\$_POST['variable']: " . $_POST['variable'] . "
";
$variable=$_POST['variable'];
echo"\$variable: " . $variable;
?>

Ideas?Edited by dvereb on 02/01/08 06:44 PM (server time).

You must use $_GET['variable'] to access information contained with a URL querystring. You are asking about register_globals, which is an evil thing covered with oozing badness!

-- si-blog --

Yeah I just figured it out right as you posted. ugh, annoying updates :D. Thanks for the help, though. I hate when this happens! As SOON as I post about it I figure it out. lol. The downside of teaching yourself php is not knowing about these things!

Thanks!Edited by dvereb on 02/01/08 06:54 PM (server time).

An easy solution (or at least one of a few) is:

Create a php file with a name like "setmyvars.php".

In this file you have:

<?
$variable1 = $_GET["variable1"];
$variable2 = $_GET["variable1"];
$variable3 = $_GET["variable1"];
?>

And at the top of any page referencing these variables, add the line:

<? require_once("setmyvars.php"); ?>

If setmyvars.php isn't in the same folder, use the standard "../" etc to finet he right dir, or use the full path, such as "/home/username/domain.com/includes/setmyvars.php".

That'll mean you just add new vars to the file whenever you add new ones.

In my opinion a much better way (and you'll hear me say this a lot) is to rewrite your code explicitly using $_GET[""] for url variables, and $_POST[""] for form variables.

Cheers,
Karl

web design, development, pay per click marketing (PPC) & Search Engine Optimisation (SEO) by DigitalVibe

Other evil ways include using $_REQUEST or extract($_GET). Or it might be quicker just to post your username and password online and let other people fiddle with it for you! </sarcasm>

-- si-blog --

$_REQUEST ..... euuuughhhhhh!

Hence me explicitly mentioning $_GET & $_POST.

I guess it would have been helpful for me to say "but under no circumstances should you EVER use $_REQUEST", unless you're one of those sorts that leaves you house unlocked cos "burglars will do less damage if they don't have to kick the door down" wink

Cheers,
Karl

web design, development, pay per click marketing (PPC) & Search Engine Optimisation (SEO) by DigitalVibe

PHP URL variable passing inconsistancy