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Caller scope
ColdFusion MX supports the Caller scope as a structure.
Client variables
The following client variables are reserved:
Client.CFID
Client.CFToken
Client.HitCount
Client.LastVisit
Client.TimeCreated
Client.URLToken
Server variables
Use the Server prefix to reference server variables, as
follows:
Server.ColdFusion.ProductName
Server.ColdFusion.ProductVersion
Server.ColdFusion.ProductLevel
Server.ColdFusion.SerialNumber
Server.ColdFusion.SupportedLocales
Server.ColdFusion.AppServer
Server.ColdFusion.Expiration
Server.ColdFusion.RootDir
Server.OS.Name
Server.OS.AdditionalInformation
Server.OS.Version
Server.OS.BuildNumber
Application and session variables
To enable application and session variables, use the
cfapplication
follows:
Application.myvariable
Session.myvariable
To ensure that modifications to shared data occur in the
intended sequence, use the
The predefined application and session variables are as
follows:
Application.ApplicationName
Session.CFID
Session.CFToken
Session.URLToken
Custom tag variables
A ColdFusion custom tag returns the following variables:
ThisTag.ExecutionMode
ThisTag.HasEndTag
ThisTag.GeneratedContent
ThisTag.AssocAttribs[index]
A custom tag can set a Caller variable to provide information
to the caller. The Caller variable is set as follows:
<cfset Caller.variable_name = "value">
The calling page can access the variable with the
tag, as follows:
<cfoutput>#variable_name#</cfoutput>
Request variable
Request variables store data about the processing of one
page request. Request variables store data in a structure that
can be passed to nested tags, such as custom tags, and
processed once.
To provide information to nested tags, set a Request
variable, as follows:
<CFSET Request.field_name1 = "value">
<CFSET Request.field_name2 = "value">
tag or Application.cfc. Reference them as
tag.
cflock
CFML Quick Reference
cfoutput
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