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PHP
Hash Large File Without Loading It
Compute the SHA-256 of a multi-gigabyte file by streaming it through hash_init / hash_update_stream — no memory blow-up. Useful for backup verification or torrent-style integrity checks.
@admin
Go
SHA-256 Hash of File or String
`crypto/sha256` is the canonical hash. Use the streaming `Hash` interface for files — never load multi-GB content into memory just to hash it.