Shared variables

The following ColdFusion variable scopes maintain data that lasts beyond the scope of the current HTTP request:

Variable scope

Variables available

Server

To all applications on a server and all clients

Application

To all pages in an application for all clients

Client

For a single client browser over multiple browser sessions in one application

Session

For a single client browser for a single browser session in one application

For more information on using these variables, including how to use locks to ensure that the data they contain remains accurate, see Using Persistent Data and Locking.