hash_update_stream

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

hash_update_stream — Pump data into an active hashing context from an open stream

Descrierea

hash_update_stream ( HashContext $context , resource $handle [, int $length = -1 ] ) : int

Parametri

context: Hashing context returned by hash_init().
handle: Open file handle as returned by any stream creation function.
length: Maximum number of characters to copy from handle into the hashing context.

Valorile întoarse

Actual number of bytes added to the hashing context from handle.

Istoricul schimbărilor

Versiune	Descriere
7.2.0	Accept HashContext instead of resource.

Exemple

Example #1 hash_update_stream() example


<?php
$fp = tmpfile();
fwrite($fp, 'The quick brown fox jumped over the lazy dog.');
rewind($fp);

$ctx = hash_init('md5');
hash_update_stream($ctx, $fp);
echo hash_final($ctx);
?>

Exemplul de mai sus va afișa:

5c6ffbdd40d9556b73a21e63c3e0e904

A se vedea și

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