dpmwy80068
2019-02-08 05:39
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PHP库函数将多维数组合并为一个基于键的数组? [重复]

This question already has an answer here:

I got two arrays that I would like to combine based on "client_id" key (using PHP function is preferable) :

[all_client] => Array
        (
            [0] => Array
                (
                    [client_id] => 1
                    [client_name] => Thomas Berg
                    [client_phone] => 12313123
                    [client_email] => aaaa@aaa.com
                )

            [1] => Array
                (
                    [client_id] => 2
                    [client_name] => John Doe
                    [client_phone] => 4231241
                    [client_email] => asdas@asdas.com
                )
    )

    [all_client_document] => Array
        (
            [0] => Array
                (
                    [client_document_id] => 3
                    [client_document_number] => BX100
                    [client_document_type] => passport
                    [client_document_issued_date] => 2018-10-17
                    [client_document_expired_date] => 2018-12-02
                    [client_id] => 1
                )

            [1] => Array
                (
                    [client_document_id] => 4
                    [client_document_number] => DJ200
                    [client_document_type] => passport
                    [client_document_issued_date] => 2018-10-15
                    [client_document_expired_date] => 2018-11-23
                    [client_id] => 2
                )

        )

)

How to merge these two array? Any PHP function to achieve this without foreach looping? I would hope to see the result as below :

[new_result] => Array
        (
            [0] => Array
                (
                    [client_id] => 1
                    [client_name] => Thomas Berg
                    [client_phone] => 12313123
                    [client_email] => aaaa@aaa.com
                    [client_document_id] => 3
                    [client_document_number] => BX100
                    [client_document_type] => passport
                    [client_document_issued_date] => 2018-10-17
                    [client_document_expired_date] => 2018-12-02
                )

            [1] => Array
                (
                    [client_id] => 2
                    [client_name] => John Doe
                    [client_phone] => 4231241
                    [client_email] => asdas@asdas.com
                    [client_document_id] => 4
                    [client_document_number] => DJ200
                    [client_document_type] => passport
                    [client_document_issued_date] => 2018-10-15
                    [client_document_expired_date] => 2018-11-23
                )
    )

How can I achieve this? Any help is much appreciated. Thanks in advanced before!

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2条回答 默认 最新

  • doujing3896 2019-02-08 06:09
    已采纳

    I found the answer based on the same question :

    $first = array_column($data['all_client'], null, 'client_id');
    $second = array_column($data['all_client_document'], null, 'client_id');
    $result = array_values(array_replace_recursive($first, $second));
    

    It reproduces as what I want also and simpler, thanks anyone!

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  • dongtangyi8962 2019-02-08 06:12

    You can achieve this by using array_map() function:

    function make_my_data($a, $b)
    {   
        return array_merge($a,$b);
    }
    
    $a = [
        0 => [
            'user_id' => 1,
            'user_name' => "Ram",
        ],
        1 => [
            'user_id' => 2,
            'user_name' => "Raj",
        ]
    ];
    
    $b = [
        0 => [
            'user_id' => 1,
            'user_emai' => "ram@abc.com",
        ],
        1 => [
            'user_id' => 2,
            'user_email' => "raj@abc.com",
        ]
    ];
    
    
    $d = array_map("make_my_data", $a , $b);
    echo "<pre>"; print_r($d);
    

    Output:

    Array
    (
        [0] => Array
            (
                [user_id] => 1
                [user_name] => Ram
                [user_emai] => ram@abc.com
            )
    
        [1] => Array
            (
                [user_id] => 2
                [user_name] => Raj
                [user_email] => raj@abc.com
            )
    
    )
    
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