合并在PHP两个数组（键和内容） [英] Merge two arrays (key and content) in PHP

问题描述

我有这样一个数组以下

阵列（[0] =>TXT1[1] =>TXT2[2] =>txt3）

Array ( [0] => "txt1" [1] => "txt2" [2] => "txt3")

我有另一个数组一样，但不同的内容：
阵列（[0] =>在[2] = ON>）

I have another array like it but with different content : Array ( [0] => on [2] => on)

的目的是获得与第二和第一内容的密钥的最后阵列，它就像将它们合并。

The aim is to get a final array with the keys of the second and the content of the first, it's like merging them.

所以，最后的结果是：阵列（[0] =>TXT1[2] =>txt3），这将是更好的键更改为0 - 1，但一个简单的问题，让我们的工作重点在合并他们一对一的。

So that the final result is : Array ( [0] => "txt1" [2] => "txt3") It would be better to change the keys to 0 - 1, but that a trivial issue, let's focus on merging them one to one.

推荐答案

要做到这一点是 array_intersect_key （查看PHP文档）。它从第一阵列抓住顺利通过对应于传递的所有其他数组键present的值。

The easiest way to do this is with array_intersect_key (See the PHP Docs). It grabs the values from the first array passed corresponding to the keys present in all other arrays passed.

所以，你的例子是这样的：

So, your example would look like this:

$a = array(0 => "txt1", 1 => "txt2", 2 => "txt3");
$b = array(0 => 1, 2 => 1);
$c = array_intersect_key($a, $b);
print_r($c);

打印：

Array
(
    [0] => txt1
    [2] => txt3
)

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