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by blueflow 554 days ago
I guess the PHP documentation is wrong then. Look at this: https://www.php.net/manual/en/function.hash-init.php
2 comments

That page includes an example that shows PHP's incremental hashing is what you describe as "dysfunctional". It hashes "The quick brown fox jumped over the lazy dog." in 1 part, and in 2 parts, and shows that the resulting hashes are equal.
I did a mistake.
For anyone curious PHP ultimately uses this definition in their introduction portion of the hash extension:

> This extension provides functions that can be used for direct or incremental processing of arbitrary length messages using a variety of hashing algorithms, including the generation of HMAC values and key derivations including HKDF and PBKDF2.