Online PHP editor | output for 9Nui9

<?php class a { public static function getFacadeRoot() { return static::resolveFacadeInstance(static::getFacadeAccessor()); } protected static function getFacadeAccessor() { throw new RuntimeException('Facade does not implement getFacadeAccessor method.'); } protected static function resolveFacadeInstance($name) { if (is_object($name)) { return $name; } } } instance = a::getFacadeRoot();