問題描述

假設我有以下數組:

Array
    (
        [0] => Array
            (
                [id] => 5
                [name] => Education
            )

        [1] => Array
            (
                [id] => 4
                [name] => Computers
            )

        [3] => Array
            (
                [id] => 7
                [name] => Science

        [4] => Array
            (
                [id] => 1
                [name] => Sports
            )
    )

第二個:

Array
    (
        [0] => Array
            (
                [id] => 1
                [title] => Sport
            )

        [1] => Array
            (
                [id] => 7
                [title] => Sci
            )

        [3] => Array
            (
                [id] => 4
                [title] => Comp

        [4] => Array
            (
                [id] => 5
                [title] => Edu
            )
    )

所需的輸出是:

Array
    (
        [0] => Array
            (
                [id] => 5
                [name] => Education
                [title] => Edu
            )

        [1] => Array
            (
                [id] => 4
                [name] => Computers
                [title] => Comp
            )

        [3] => Array
            (
                [id] => 7
                [name] => Science
                [title] => Sci

        [4] => Array
            (
                [id] => 1
                [name] => Sports
                [title] => Sport
            )
    )

我已經設法將這些數組與簡單地合并:

I have managed to merge these arrays with simply:

foreach($first as $key => $value){
    $result[$key] = array_merge($first[$key], $second[$key]);
}

但是輸出沒有正確組合:

But the output is not combined correctly:

Array
    (
        [0] => Array
            (
                [id] => 5
                [name] => Education
                [title] => Sport
            )

        [1] => Array
            (
                [id] => 4
                [name] => Computers
                [title] => Sci
            )

        [3] => Array
            (
                [id] => 7
                [name] => Science
                [title] => Comp

        [4] => Array
            (
                [id] => 1
                [name] => Sports
                [title] => Edu
            )
    )

問題是我想在相同的 id 上合并這些數組.所需的輸出排序應與第一個數組中的排序相同.

The problem is I would like to merge these arrays on the same id. Desired output sorting should be same as in the first array.

我怎樣才能做到這一點?非常感謝任何幫助.

How can I achieve this? Any help is much appreciated.

推薦答案

你可以做一個嵌套循環并檢查 id 值是否匹配，然后將 title 添加到$first(或 name 到 $second)

You can just do a nested loop and check if the id values match, then add title to $first (or name to $second)

foreach($first as $key => $value){
    foreach($second as $value2){
        if($value['id'] === $value2['id']){
            $first[$key]['title'] = $value2['title'];
        }               
    }
}

這篇關于在特定鍵上合并兩個多維數組的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！