📅  最后修改于: 2022-03-11 15:01:50.940000             🧑  作者: Mango
$inner = ["b" => "i", "c" => "i"];
$outer = ["a" => "o", "c" => "o"];
var_dump(array_merge($outer, $inner));
var_dump(array_merge($inner, $outer));