Some ColdFusion tags return data as variables. For example, the cffile tag returns file size information in the FileSize variable, referenced as CFFILE.FileSize.
The following tags return data that you can reference in variables:

cfcatch
cfdirectory
cferror
cffile
cfftp
cfhttp
cfindex
cfldap
cfpop
cfquery
cfregistry
cfsearch
cfstoredproc

See also