Fixed stub types for SplFixedArray

[dktapps]

No description provided.

[ondrejmirtes]

I don't get these changes. They do the exact opposite of what you asked. The offsetGet can never return null because it throws an exception.

[dktapps]

I'm not sure how you drew that from my issue, but this is in fact the correct behaviour. SplFixedArray will return null for offsets that exist but aren't yet initialized. https://3v4l.org/GBc56

[ondrejmirtes]

Oh thanks, I tested if for an offset that was outside the length bound and it thrown an exception instead.

[ondrejmirtes]

Thank you.