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hash

(no version information, might be only in CVS)

hash -- Generate a hash value (message digest)

说明

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 1. A hash() example

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

上例将输出：

ec457d0a974c48d5685a7efa03d137dc8bbde7e3

参见

hash_file()
hash_hmac()
hash_init()



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