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PHP : Function Reference : hash Functions : hash_update_stream

hash_update_stream

Pump data into an active hashing context from an open stream (PHP 5 >= 5.1.2, PECL hash:1.1-1.5)
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 871. 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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hash_algos
hash_file
hash_final
hash_hmac_file
hash_hmac
hash_init
hash_update_file
hash_update_stream
hash_update
hash
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