Variables not working in Include file

I've read on tutorial web sites that if you set a variable in a file and the include another file that references that variable, it'll work, but it isn't working for me. Here's an example of my code:

http://www.mysite.com/folder/thisfile.php

<?php
$testvariable = "test";
include("http://www.mysite.com/test.php");
?>

PHP:

http://www.mysite.com/test.php

<?php
echo "Output: ". $testvariable;
?>

PHP:

And the page only says "Output: "

Could it be because it's including a file that's not in the same folder? I don't understand why it's not working. Any help would be appreciated!

 

You are doing it wrong. try this

http://www.mysite.com/folder/thisfile.php

<?php
$testvariable = "test";
?>

PHP:

http://www.mysite.com/test.php

<?php
include("folder/thisfile.php");
echo "Output: ". $testvariable;
?>

PHP:

 

That won't allow me to do what I'm trying to do though. I want to have several folders with a file that all include the 'test.php' file, but with a different variable. If that's not possible, then I guess I'll have to go back to the drawing board and figure out a different way to accomplish what I'm trying to do.

 

You can rather define the variable instead.

// folder/thisfile.php
<?php
    define('TESTVARIABLE', 'test');
    include '../test.php';
?>

// test.php
<?php
    echo defined('TESTVARIABLE') ? TESTVARIABLE : 'TESTVARIABLE not found...';
?>

PHP:

 

You should you Constant for this because Variable on have the value within the include File.