Hello, our turn to be hit by this 7.1 BC break in Symfony: `ReflectionType::__toString()` now adds a `?` in front of type hints where `null` is allowed by their default values.
But since `zend_bool` is really an `unsigned char`, we have plenty of room to store and forward this semantic subtlety (nullable being set through `?Foo $arg` vs `Foo $arg = null`) so that `ReflectionType::__toString()` can be accurate again, thus BC. See https://github.com/php/php-src/pull/2136 Thank for you consideration of this patch. Cheers, Nicolas
