Bug report

Methods such as sha256, hash, hash_hmac return same values given same inputs.

I also noticed it's reporting hash/hash_hmac call as impure, but says "call to function sha256()" (the first argumented to hash)

Code snippet that reproduces the problem

https://phpstan.org/r/b5c484eb-6682-419a-b523-3f05eef2776a

Expected output

No impure errors.

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