| Eval( )
|
Evaluates any Asterisk variables located
within a string
|
Eval(newvar=string)
Processes the given string and
evaluates any variables contained in the string. The resulting
value is assigned to the variable newvar.
This application is used in situations where a
string is used in the dialplan, but any variables contained within
it need to be evaluated first. This is often the case when the
string is retrieved from a database or other external source.
; go through some convoluted steps to create a string that contains
; the unparsed variable ${UNIQUEID}
exten => 123,1,Set(ONE=\$)
exten => 123,2,Set(TWO=$[{UNIQUEID}])
; print the values to the console, to make sure it hasn't been parsed
exten => 123,3,NoOp(${ONE}${TWO})
; now evaluate the variables in the string
exten => 123,4,Eval(TEST=${ONE}${TWO})
; print the result to the console
exten => 123,5,NoOp(${TEST})
See Also
Exec( ),
ExecIf( )
|
