If the first and second arguments are different the third argument is passed back, otherwise the fourth argument (or if not given the first argument) is passed back.This function is valid in v2.13.0 to v2.20.0. This function has been downloaded 22 times.
subjectare the same.
opt_trueValuewill be returned if
controlis different from
subject. Otherwise, if
falseValueis given it will be returned, but if not given
subjectwill be returned.
This function requires the following function which is included automatically: