Variable Scope

The primary differences between variable types are where they exist, how long they exist, and where their values are stored. These considerations are referred to as a variable's scope.

The table below describes the ColdFusion Express variables by their scope.


Variable Type	Scope
Local	The page on which it is created.
Query	The page on which it is created.
Form	The action page that's associated with a form.
URL	The target page for the hyperlink.
Cookie	All browser sessions.
CGI	All sessions.
Application	The specific application for which it is created.

You will learn more about scope on an as needed basis throughout this book.