如何在PHP中合并数组值？

Question

我有数组1：

Array
(
    [0] => Array
        (
            [recomendation_id] => 3588
            [employee_id] => 90141063
            [attendance_type_id] => 2
            [start_dtm] => 2016-05-17 10:32:00
            [end_dtm] => 
            [request_message] => test notif
            [recomendation_status_id] => 1
            [last_update_dtm] => 2016-05-17 10:32:43
            [employee_name] => Nike Yulistia Angreni
            [attd_type_name] => Permittance
            [status_name] => Request
        )

)

还有数组2:

Array
(
    [0] => Array
        (
            [valuator1] => Wulan  Lastia Permana
        )
)

我想将一个数组中的值合并到另一个数组中。我希望得到以下结果：

Array
(
    [0] => Array
        (
            [recomendation_id] => 3588
            [employee_id] => 90141063
            [attendance_type_id] => 2
            [start_dtm] => 2016-05-17 10:32:00
            [end_dtm] => 
            [request_message] => test notif
            [recomendation_status_id] => 1
            [last_update_dtm] => 2016-05-17 10:32:43
            [employee_name] => Nike Yulistia Angreni
            [attd_type_name] => Permittance
            [status_name] => Request
            [valuator1] => Wulan  Lastia Permana
        )
)

“像这样加入”是可能的吗？

- Nike Yulistia Angreni

Answer 1

你需要使用array_replace_recursive函数：

<?php

$arr1 = Array
(
     Array
        (
            "recomendation_id" => 3588,
            "employee_id" => 90141063,
            "attendance_type_id" => 2,
            "start_dtm" => "2016-05-17 10:32:00",
            "end_dtm" => "",
            "request_message" => "test notif",
            "recomendation_status_id" => 1,
            "last_update_dtm" => "2016-05-17 10:32:43",
            "employee_name" => "Nike Yulistia Angreni",
            "attd_type_name" => "Permittance",
            "status_name" => "Request"
        )

);
$arr2 = Array
(
    Array
        (
            "valuator1" => "Wulan  Lastia Permana"
        )
);

print_r(array_replace_recursive($arr1,$arr2));

结果：

Array
(
    [0] => Array
        (
            [recomendation_id] => 3588
            [employee_id] => 90141063
            [attendance_type_id] => 2
            [start_dtm] => 2016-05-17 10:32:00
            [end_dtm] => 
            [request_message] => test notif
            [recomendation_status_id] => 1
            [last_update_dtm] => 2016-05-17 10:32:43
            [employee_name] => Nike Yulistia Angreni
            [attd_type_name] => Permittance
            [status_name] => Request
            [valuator1] => Wulan  Lastia Permana
        )

)

您的 Eval

---

如果您使用array_merge_recursive，则您的输出将是：

Array
(
    [0] => Array
        (
            [recomendation_id] => 3588
            [employee_id] => 90141063
            [attendance_type_id] => 2
            [start_dtm] => 2016-05-17 10:32:00
            [end_dtm] => 
            [request_message] => test notif
            [recomendation_status_id] => 1
            [last_update_dtm] => 2016-05-17 10:32:43
            [employee_name] => Nike Yulistia Angreni
            [attd_type_name] => Permittance
            [status_name] => Request
        )

    [1] => Array
        (
            [valuator1] => Wulan  Lastia Permana
        )

)

- Thamilhan

---

有趣。我不知道这些函数。array_replace_recursive 不会覆盖旧值吗？还是它也可以添加新值？ - Peter

@Peter array_replace_recursive会替换旧值。 - Thamilhan

@NikeYulistiaAngreni 欢迎！ - Thamilhan

Answer 2

你可以使用array_merge_recursive函数。

$result = array_merge_recursive($array1, $array2);

- arhey

---

以上的输出结果与期望的不同。 - Ali

array_merge_recursive 会将值添加到不同的子数组中。 - Peter

Answer 3

是的，这是可能的。让你的第一个数组是$arr1，第二个数组是$arr2。

只需为您的第一个数组分配一个新字段，您的第一个数组将使用第二个数组的键值对进行更新。

$arr1[0]['valuator1'] = $arr2[0]['valuator1'];

print_r($arr1);

结果：

Array
(
    [0] => Array
        (
            [recomendation_id] => 3588
            [employee_id] => 90141063
            [attendance_type_id] => 2
            [start_dtm] => 2016-05-17 10:32:00
            [end_dtm] => 
            [request_message] => test notif
            [recomendation_status_id] => 1
            [last_update_dtm] => 2016-05-17 10:32:43
            [employee_name] => Nike Yulistia Angreni
            [attd_type_name] => Permittance
            [status_name] => Request
            [valuator1] => Wulan  Lastia Permana
        )

)

- Murad Hasan

Answer 4

在我看来，这不是最佳选择，但它仍然可以解决你的问题。

foreach ($arr2 as $k => $v) {
    $arr1[$key] = array_merge($arr1[$key], $v);
}

这将循环遍历第二个数组，并将每个值与第一个数组合并。

注意：为使此操作正常工作，您的数组键应在两个数组中相同。

- Peter