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Pump data into an active hashing context from an open stream

hash_update_file

hash_update_stream

(PHP 5 >= 5.1.2, PECL hash:1.1-1.5)

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

Description

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

Parameters

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.

Return Values

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

Examples

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);
?>

The above example will output:

  5c6ffbdd40d9556b73a21e63c3e0e904

See Also

hash_update_file