var help

Action_Man

Hi i have a script that i downloaded and installed, one thing is it has a lot of variables and i cant find where they are called

examples would be

        <td valign=top><b><?=$COUNTRY?>: </b></td>

?=$COUNTRY? is not called anywhere in the file or related files, are these queries called or variables?

NogDog

The actual variable is $COUNTRY. The "<?=" and "?>" are PHP start/end tags, and are using s special "short_open_tags" abbreviation with the equals sign to represent:

<?php echo $COUNTRY; ?>

This short syntax is now considered deprecated, and it is best to always use the full "<?php" tag to ensure script portability and avoid confusion with "<?xml" tags.

Anyway, if $COUNTRY is not defined within the script you are looking at, it could be possibly be defined in an included file called by [man]include[/man], [man]include_once[/man], [man]require[/man], or [man]require_once[/man]. If not, then it may be a bug or something is missing from your installation.

bradgrafelman

NogDog wrote:
Anyway, if $COUNTRY is not defined within the script you are looking at, it could be possibly be defined in an included file called by [man]include[/man], [man]include_once[/man], [man]require[/man], or [man]require_once[/man]. If not, then it may be a bug or something is missing from your installation.

Or, it could be that the script depended upon yet another deprecated feature - register_globals.

If $COUNTRY is supposed to reference data sent via the user (e.g. in the query string or in a form), then you need to use the appropriate superglobal array (e.g. $GET or $POST).

Action_Man

Thanks for the reply it actually does use registered_globals

Where could they be called from?

bradgrafelman

Action Man wrote:
Where could they be called from?

I don't understand what you're asking... if your script relied on register_globals, then you need to use superglobal arrays wherever you have variables for user-supplied data.

For example, if $COUNTRY came from the url (e.g. mysite.com/page.php?COUNTRY=USA), then you need to replace $COUNTRY with $_GET['COUNTRY'] in your script(s).

More information about these superglobal arrays can be found here: [man]variables.predefined[/man].