Fixed #307, #311 False positive ArrayDimFetch

ovr / phpsa

Smart/Static Analyzer(sis) for PHP :bowtie::neckbeard:

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Closed algo13 closed 7 years ago

algo13 commented 7 years ago

@ovr, @ddmler

We should not emit errors to UNIMPLEMENTED and UNKNOWN.
Possible to fetch Object on implements ArrayAccess interface(e.g. SplDoublyLinkedList[mixed], SplFixedArray[int], SplObjectStorage[object], ArrayObject[mixed]).
The type of the array subscript can also be an object by ArrayAccess.
return null for scalar other than string.

ddmler commented 7 years ago

Thanks @algo13 :+1: