| public static hash ( string $string, array $options = [] ) : string | ||
| $string | string | The string to hash. |
| $options | array | Supported options: - `'type'` _string_: Any valid hashing algorithm. See the `hash_algos()` function to determine which are available on your system. - `'salt'` _string_: A _salt_ value which, if specified, will be prepended to the string. - `'key'` _string_: If specified `hash_hmac()` will be used to hash the string, instead of `hash()`, with `'key'` being used as the message key. - `'raw'` _boolean_: If `true`, outputs the raw binary result of the hash operation. Defaults to `false`. |
| return | string | Returns a hashed string. |
public static function hash($string, array $options = array())
{
$defaults = array('type' => 'sha512', 'salt' => false, 'key' => false, 'raw' => false);
$options += $defaults;
if ($options['salt']) {
$string = $options['salt'] . $string;
}
if ($options['key']) {
return hash_hmac($options['type'], $string, $options['key'], $options['raw']);
}
return hash($options['type'], $string, $options['raw']);
} /**
* Generate hashed and salted token from `'prefix'` and `md5` hashed `$email` value
* @param $email string User email that will be used as base for secret token
* @param array $options Supported options:
* - `'prefix'` _string|int_ If not passed this method will generate random int from
* `100000` to `999999`. Hashed email will be prefixed with value of this option.
* Example: `'prefix_value' . md5($email)`
* - All other options are same as `lithium\util\String::hash()`
* @return string Hashed prefixed email salted and hashed again
* @see lithium\util\String::hash()
*/
public static function generate($email, array $options = array())
{
$options += array('prefix' => null, 'salt' => LI3_UM_TokenSalt, 'type' => 'sha256');
$prefix = $options['prefix'] ? $options['prefix'] : mt_rand(100000, 999999);
unset($options['prefix']);
return String::hash($prefix . md5($email), $options);
}
