正则匹配出字符串中得汉字

<?php

$res1 = '人们/n 其它/r ';
preg_match_all("/[\x{4e00}-\x{9fa5}]+/u", $res1, $array);

var_dump($array);exit;

输出
D:\xampp\htdocs\php\4.php:12:
array (size=1)
0 =>
array (size=2)
0 => string ‘人们’ (length=6)
1 => string ‘其它’ (length=6)