Rechercher une fonction PHP

hash_update_stream

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(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

Description

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

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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.

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Return Values

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

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Changelog

Version Description
7.2.0 Accept HashContext instead of resource.

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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

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See Also

  • 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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Document created the 30/01/2003, last modified the 26/10/2018
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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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