PHP将两个关联数组到一个数组 [英] PHP combine two associative arrays into one array

问题描述

$array1 = array("$name1" => "$id1");

$array2 = array("$name2" => "$id2", "$name3" => "$id3");

我需要一个新的阵列合成一起，也就是说，它会

I need a new array combining all together, i.e. it would be

$array3 = array("$name1" => "$id1", "$name2" => "$id2", "$name3" => "$id3");

什么是做到这一点的最好方法是什么？

What is the best way to do this?

对不起，我忘了，IDS永远比不上对方，但在技术上可能的名字，但不会是有可能的，他们都需要在一个阵列中列出。我看着array_merge，但不知道这是否是要做到这一点最好的办法。此外，你会如何单元测试吗？

Sorry, I forgot, the ids will never match each other, but technically the names could, yet would not be likely, and they all need to be listed in one array. I looked at array_merge but wasn't sure if that was best way to do this. Also, how would you unit test this?

推荐答案

array_merge （） 是更有效，但也有几个选项：

array_merge() is more efficient but there are a couple of options:

$array1 = array("id1" => "value1");

$array2 = array("id2" => "value2", "id3" => "value3", "id4" => "value4");

$array3 = array_merge($array1, $array2/*, $arrayN, $arrayN*/);
$array4 = $array1 + $array2;

echo '<pre>';
var_dump($array3);
var_dump($array4);
echo '</pre>';

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