Hash Functions
PHP Manual

hash_copy

Copy hashing context

Description

resource hash_copy ( resource $context )

Parameters

context

Hashing context returned by hash_init.

Return Values

Returns a copy of Hashing Context resource.

Examples

Example #1 hash_copy example

<?php
$context = hash_init("md5");
hash_update($context, "data");

/* copy context to be able to continue using it */
$copy_context = hash_copy($context);

echo hash_final($context), "\n";

hash_update($copy_context, "data");
echo hash_final($copy_context), "\n";
?>

The above example will output:

8d777f385d3dfec8815d20f7496026dc
511ae0b1c13f95e5f08f1a0dd3da3d93