You'll want to put it just before you use the string. Or you can put
PHP Code:
$article_content = stripslashes($article_content);
AFTER
PHP Code:
// clean all our data
$_POST = array_map('secure',$_POST);
$_GET = array_map('secure',$_GET);
in the functions page and that should effectively strip slashes from ALL of your content. But then BBCode wouldn't work I don't think.