合并/合并具有相同密钥 PHP 的 arrays
[英]Combine/Merge arrays that have the same keys PHP
问题描述
I have an array that has some keys that are repeating multiple times.
我有一个数组，其中有一些重复多次的键。 Would like to combine them so that I can have them in one array, within the same array.想将它们组合起来，以便我可以将它们放在同一个数组中的一个数组中。 I have an array of this type;我有一个这种类型的数组；
Array
(
[Shoes] => Array
(
[POLO] => Array
(
[0] => Size5
)
)
)
Array
(
[Shoes] => Array
(
[FUBU] => Array
(
[0] => size6
)
)
)
Array
(
[Bag] => Array
(
[HPBAG] => Array
(
[0] => Black
)
)
)
Array
(
[Bag] => Array
(
[HPBAG] => Array
(
[0] => White
)
)
)
I would like an output of the following kind;我想要以下类型的 output；
Array
(
[Shoes] => Array
(
[POLO] => Array
(
[0] => size5
)
[FUBU] => Array
(
[0] => size6
)
)
[Bag] => Array
(
[HPBAG] => Array
(
[0] => Black
[1] => White
)
)
)
I have tried array_merge, array_merge_recursive but all are not working.我试过array_merge、array_merge_recursive，但都不起作用。
foreach ($county as $value) { print_r(array_merge($value)); } //$value contains the array
foreach ($county as $value) { print_r(array_merge_recursive($value)); } //$value contains the array
Kindly assist if you have an idea on how to solve this in PHP.如果您对如何在 PHP 中解决此问题有任何想法，请提供帮助。
1 个解决方案
解决方案1
0 已采纳 2021-01-01 20:56:19
You could do it with a few nested array_walk() calls:你可以通过几个嵌套的array_walk()调用来做到这一点：
$arr=array(array("Shoes" => array("POLO" => array("Size5"))),
array("Shoes" => array("FUBU" => array("size6"))),
array("Bag" => array("HPBAG" => array("Black"))),
array("Bag" => array("HPBAG" => array("White"))));
$res=[];
array_walk($arr,function($a) use (&$res){
array_walk($a, function($ar,$type) use (&$res){
array_walk($ar, function ($arr,$brand) use (&$res,$type){
$res[$type][$brand]=array_merge($res[$type][$brand]??[],$arr);
});
});
});
print_r($res);
See the demo here: https://rextester.com/RFLQ18142在此处查看演示： https://rextester.com/RFLQ18142
It produces this result:它产生这个结果：
Array
(
[Shoes] => Array
(
[POLO] => Array
(
[0] => Size5
)
[FUBU] => Array
(
[0] => size6
)
)
[Bag] => Array
(
[HPBAG] => Array
(
[0] => Black
[1] => White
)
)
)
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