PHP array_intersect + array_flip与数组具有多次值 [英] PHP array_intersect + array_flip with array that has values multiple times

问题描述

我有两个数组:

$arr1 = array(101 => 250, 102 => 250, 103 => 250, 104 => 500, 105 => 500, 106 => 500,);

和

$arr2 = array(0 => 103, 1 => 104, 2 => 105) 

我想要得到的结果是

Array (103 => 250, 104 => 500)

---

我尝试与

---

I have tried working with

array_intersect(array_flip($arr1), $arr2);

但是

array_flip($arr1)

给出类似的东西

Array(103 => 250, 106 => 500)

因此，密钥丢失并且无法正确相交.有没有办法获得想要的结果?

thus, keys get lost and can not be intersected correctly. Is there a way to get the desired result?

推荐答案

以下代码完成了这项工作.我希望它是不言自明的.

The following code does the job. I hope it is self-explanatory.

array_unique(array_intersect_key($arr1, array_flip($arr2)))

这篇关于PHP array_intersect + array_flip与数组具有多次值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！