如何在PHP中删除重复的二维数组? [英] How to remove duplicated 2-dimension array in PHP?

问题描述

我从之前的帖子中得到了一些想法，这些帖子讨论的是为每个 $array[$i] 制作哈希值，然后比较哈希以获得唯一的数组，但我不知道我能做什么.

I have some idea from the previous posts that were talking about making a hash value for each $array[$i], and then compare the hash to get the unique array, but I don't know what I can do exactly.

我的样本数组数据:

$arr[] = array(0,1,2,3);
$arr[] = array(4,5,2,1);
$arr[] = array(0,0,0,0);
$arr[] = array(0,1,2,3);

我希望回来:

$arr[] = array(0,1,2,3);
$arr[] = array(4,5,2,1);
$arr[] = array(0,0,0,0);

有人可以为此目的向我发布一个函数吗?

Can anyone post me a function for this purpose?

非常感谢！

推荐答案

快速简单:

$arr = array_map('unserialize', array_unique(array_map('serialize', $arr)));

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