> > I'm not so sure its a BC though. Technically nullable types don't exist in > 7.0 and as such would be impossible to return said question mark. Its only > adding support for a new feature, not changing how an existing feature > works IMO. If nullable types had been in 7.0 its highly probably, that > __toString would have returned the leading question mark back then. >
Here is the BC break: https://3v4l.org/VUbIS As light as it looks to be, the output on PHP7.1RC2 is not the same as in PHP7.0. Yet, __toString() is the only public interface that is available on PHP 7.0, so people have already built things on top. Nicolas p.s. to Nikita: my bad for the too short quote...
