Generates a single-use key to be embedded in a form or used with another non-idempotent
request (a request that changes the state of the server or application), that will match
against a client session token using the `check()` method.
Parameters
- array $options An array of options to be passed to `RequestToken::get()`.
Returns
string Returns a hashed key string for use with `RequestToken::check()`.Source
public static function key(array $options = array()) {
return Password::hash(static::get($options));
}