hash_update_stream

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

hash_update_streamPump data into an active hashing context from an open stream

Descrierea

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

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.

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

Vedeți de asemenea

  • 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

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