Creating Variables

Variables are created in different ways depending on the variable type. The table below describes how ColdFusion Express supported variables are created.


Variable Type	Creation
Local	The CFSET or CFPARAM tag.
Query	The CFQUERY tag.
Form	Passes from the HTML form to the action page.
URL	Passes from the query string (?) at the end of a URL to a target page.
Cookie	The CFSET or CFCOOKIE tag.
CGI	Passes from the browser and server during a browser request.
Application	The CFSET or CFPARAM tag.

During this chapter, you will create and reference a local variable, learn how to reference some CGI variables and, learn how to set cookie variables. You will create other variables on an as needed basis throughout this book. For example, you will create and reference query variables in Chapter 5, Building Pages that Retrieve Data and form variables in Chapter 7, Using Forms and Action Pages.