如何删除重复的PHP 2维数组？
问题描述：
我已经从谈论制作哈希值对每个$阵列[$ i]的previous岗位有所了解，然后比较哈希值来获得独特的数组，但我不知道我是什么就可以这样做。
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.
我的样品阵列数据：
$arr[] = array(0,1,2,3);
$arr[] = array(4,5,2,1);
$arr[] = array(0,0,0,0);
$arr[] = array(0,1,2,3);
我期望返回：
$arr[] = array(0,1,2,3);
$arr[] = array(4,5,2,1);
$arr[] = array(0,0,0,0);
任何人都可以发表我用于此目的的功能？
Can anyone post me a function for this purpose?
非常感谢！
答
快速，简单的：
$arr = array_map('unserialize', array_unique(array_map('serialize', $arr)));