PHP-php从数组中随机选出5个组成数组并排序

Question

$red = array('1'=>" 01 ",'2'=>" 02 ",'3'=>" 03 ",'4'=>" 04 ",'5'=>" 05 ",'6'=>" 06 ",'7'=>" 07 ",'8'=>" 08 ",'9'=>" 09 ",'10'=>" 10 ",'11'=>" 11 ",'12'=>" 12 ",'13'=>" 13 ",'14'=>" 14 ",'15'=>" 15 ",'16'=>" 16 ",'17'=>" 17 ",'18'=>" 18 ",'19'=>" 19 ",'20'=>" 20 ",'21'=>" 21 ",'22'=>" 22 ",'23'=>" 23 ",'24'=>" 24 ",'25'=>" 25 ");