lithium\action\Request::__isset PHP Method

Allows request parameters to be checked using short-hand notation. See the __get() method for more details.

See also: lithium\action\Request::__get()

public __isset ( string $name ) : boolean
$name	string	The name of the request parameter to check.
return	boolean	Returns true if the key in `$name` is set in the `$params` array, otherwise `false`.

    public function __isset($name)
    {
        return isset($this->params[$name]);
    }

Request