php man page for hash_final

HASH_FINAL(3)								 1							     HASH_FINAL(3)

hash_final - Finalize an incremental hash and return resulting digest

SYNOPSIS
       string hash_final (resource  $context, [bool  $raw_output = false])

DESCRIPTION
PARAMETERS
	      o $context
		- Hashing context returned by hash_init(3).

	      o $raw_output
		- When set to TRUE, outputs raw binary data.  FALSE outputs lowercase hexits.

RETURN VALUES
	Returns  a  string  containing	the  calculated message digest as lowercase hexits unless $raw_output is set to true in which case the raw
       binary representation of the message digest is returned.

EXAMPLES
       Example #1

	      hash_final(3) example

	      <?php
	      $ctx = hash_init('sha1');
	      hash_update($ctx, 'The quick brown fox jumped over the lazy dog.');
	      echo hash_final($ctx);
	      ?>

	      The above example will output:

	      c0854fb9fb03c41cce3802cb0d220529e6eef94e

SEE ALSO
       hash_init(3), hash_update(3), hash_update_stream(3), hash_update_file(3).

PHP Documentation Group 													     HASH_FINAL(3)