エラーArray ( [artist_name] => mo [-lulu/] => )
POST : Array ( ) -------- GET : Array ( [artist_name] => mo [-lulu/] => ) -------- $_SERVER['REQUEST_URI'] /artist/mo-lulu/ -------- mb_parse_str Array ( [artist_name] => mo [-lulu/] => ) -------- $_SERVER['QUERY_STRING'] artist_name=mo&-lulu/