Currently, get_string_variable returns an empty string if the variable doesn't exist. Since, arguably, a variable could exist but contain an empty string, is there a way to tell whether the variable really does or doesn't exist?
thanks.
Currently, get_string_variable returns an empty string if the variable doesn't exist. Since, arguably, a variable could exist but contain an empty string, is there a way to tell whether the variable really does or doesn't exist?
thanks.