realpath() empty path fix
realpath() empty path fix

peachpiecompiler/peachpie,iolevel/peachpie-concept,peachpiecompiler/peachpie,iolevel/peachpie,iolevel/peachpie-concept,iolevel/peachpie,iolevel/peachpie-concept,peachpiecompiler/peachpie,iolevel/peachpie