Array is non-empty when in_array is not strict #2539
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@ondrejmirtes I think getting this merged would help a lot of non-strict codebases, because |
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Thank you! |
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Hi, this PR does not close phpstan/phpstan#10228. Here I have the updated playground after your change https://phpstan.org/r/026707d1-2de9-4bbb-8f1c-d47312de414c. |
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implements true-context type narrowing to non-empty-array for non-strict use of
in_array.with this PR we only narrow when
$needleis of the same type as the$haystack's iterable type.when non-strict, the loose-compare falsey context would be pretty complicated, therefore this PR just implements the true-context part (which already fixes 2 reported issues).
there is still room for improvement in true and false-context but this is a good first step which should already cover a lot of real-world code.
closes phpstan/phpstan#9662
closes phpstan/phpstan#10228