/**
* Sets a request value by key
*
* @param mixed $key The key to define
* @param mixed $value The value for the passed key
*/
static function set($key, $value = null)
{
$data = self::data();
if (is_array($key)) {
self::$_ = array_merge($data, $key);
} else {
self::$_[$key] = $value;
}
}
