PHP ʖ²ἯTH º󍋼/A array_reduce ˵÷ =ד 1. array_reduce() =ד function rsum($v, $w) {$v += $w; return $v;} function rmul($v, $w) {$v *= $w; return $v;} $a = array(1, 2, 3, 4, 5); $x = array(); $b = array_reduce($a, "rsum"); $c = array_reduce($a, "rmul", 10); $d = array_reduce($x, "rsum", 1); բ½«ʹ $b µĖµΪ 15£¬$c µĖµΪ 1200£¨= 1*2*3*4*5*10£©£¬Ҕ¼° $d µĖµΪ 1¡£ º󍋼/A ưµ㼯A array_rand ɏһ¼¶ array_reverse