calling variables in different php files

[fume711]

Hi,

 

i'm new to php and am trying to call $variables in different in multiple hierarchy from one main variable file.

 

I have one main file called variables.php that contain a list of variables

<?php

$variable1 = 'root/main/';

$variable2 = 'welcome';

$variable3 = 'testing';

?>

 

a second file called file1.php in the same directory as the variables.php file

<?php

require 'varibles.php';

include $variable1 . 'testing.php'

?>

 

a third file called testing.php inside root/main/

<?php

echo $variable2;

include $varible1 . 'temp/abc.php';

?>

 

a fourth file called abc.php inside root/main/temp

<?php

echo $variable3;

?>

 

the problem is testing.php is able to echo $variable2 but abc.php is not able to echo $variable3...is there a limit to the level of files before it can't echo a variable?