hash
(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1)
hash — Generate a hash value (message digest)
Description
string
$algo,string
$data,bool
$binary = false,array
$options = []): string
Parameters
-
algo -
Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..). For a list of supported algorithms see hash_algos().
-
data -
Message to be hashed.
-
binary -
When set to
true, outputs raw binary data.falseoutputs lowercase hexits. -
options -
An array of options for the various hashing algorithms. Currently, only the "seed" parameter is supported by the MurmurHash variants.
Return Values
Returns a string containing the calculated message digest as lowercase hexits
unless binary is set to true in which case the raw
binary representation of the message digest is returned.
Changelog
| Version | Description |
|---|---|
| 8.1.0 | The options parameter has been added. |
| 8.0.0 |
hash() now throws a ValueError exception
if algo is unknown; previously, false was returned instead.
|
Examples
Example #1 A hash() example
<?php
echo hash('ripemd160', 'The quick brown fox jumped over the lazy dog.');
?>
The above example will output:
ec457d0a974c48d5685a7efa03d137dc8bbde7e3
See Also
- hash_file() - Generate a hash value using the contents of a given file
- hash_hmac() - Generate a keyed hash value using the HMAC method
- hash_init() - Initialize an incremental hashing context
- md5() - Calculate the md5 hash of a string
- sha1() - Calculate the sha1 hash of a string
