Accessing a variable from a file through a file that is required in said first file
<p>I have an osCommerce-shop where I need to access a variable from inside an included php-file. For the sake of simplicity here is a short example of what I am talking about without anything related to osCommerce:</p>

<p>The file inside.php shows a picture and is only displayed on the homepage by being somehow required in index.php. Depending on what language has been selected it should show either picture 1 or 2. Currently only the first picture is displayed because I have no way of knowing which one should be used. Normally there is a $language_id variable which I can check if it is either 1 (english) or 2 (german). Unfortunately $language_id in inside.php is empty (or at least it looks like it) so I need a way to access the variable from index.php. Is there a way to do this without passing this variable or something like that? (Since it is a osCommerce-shop I am not sure how I could to that)</p>

<p>I hope what I tried to explain is somewhat understandable, if not, please ask and I'll try to clarify.</p>
