hash_update_file

(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1)

hash_update_file — Pump data into an active hashing context from a file

hash_update_file(HashContext $context, string $filename, ?resource $stream_context = null): bool

context: Hashing context returned by hash_init().
filename: URL describing location of file to be hashed; Supports fopen() wrappers.
stream_context: Stream context as returned by stream_context_create().

Restituisce true in caso di successo, false in caso di fallimento.

Versione	Descrizione
8.0.0	`stream_context` is now nullable.
7.2.0	Accept HashContext instead of resource.

hash_init() - Initialize an incremental hashing context
hash_update() - Pump data into an active hashing context
hash_update_stream() - Pump data into an active hashing context from an open stream
hash_final() - Finalize an incremental hash and return resulting digest
hash_file() - Generate a hash value using the contents of a given file

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