PHP ʖ²ἯTH º󍋼/A uksort ˵÷ =ד 1. uksort() =ד function cmp ($a, $b) {if ($a == $b) return 0; return ($a $b)? -1: 1;} $a = array (4 = "four", 3 = "three", 20 = "twenty", 10 = "ten"); uksort ($a, "cmp"); while (list ($key, $value) = each ($a)) {echo "$key: $value\n";} 20: twenty 10: ten 4: four 3: three º󍋼/A ưµ㼯A uasort ɏһ¼¶ usort