hash

Generate a hash value (message digest) ()
string hash ( string algo, string data [, bool raw_output] )

参数

algo

Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..)

data

Message to be hashed.

raw_output

When set to TRUE, outputs raw binary data. Default value (FALSE) outputs lowercase hexits.

返回值

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.

范例

例 751. A hash() example

<?php
echo hash('ripemd160', 'The quick brown fox jumped over the lazy dog.');
?>

上例将输出:

ec457d0a974c48d5685a7efa03d137dc8bbde7e3