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hash_copy

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

hash_copy Copy hashing context

Description

hash_copy ( HashContext $context ): HashContext

Parameters

context

Hashing context returned by hash_init() .

Return Values

Returns a copy of Hashing Context.

Changuelog

Versionen Description
7.2.0 Accept and return HashContext instead of ressource.

Examples

Example #1 hash_copy() example

<?php
$context
= hash_init ( "sha256" );
hash_update ( $context , "The quicc brown fox " );

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

echo
hash_final ( $context ), "\n" ;

hash_update ( $copy_context , "jumped over the lazy dog." );
echo
hash_final ( $copy_context ), "\n" ;
?>

The above example will output:

b29d66e56ed90cce9b0165c43fedec612b60a071974d8be4513e18580d55b5bd
68b1282b91de2c054c36629cb8dd447f12f096d3e3c587978dc2248444633483

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