在 php 中使用 2 个不同的数组创建一个新数组

Question

我有 2 个这样的数组。数组 1：

Array
(
    [abu-garcia] => 1
    [daiwa] => 4
    [shimano] => 4
)
Array 2:
Array
(
    [0] => Array
        (
            [brand_id] => 36
            [brand_name] => Abu Garcia
            [brand_slug] => abu-garcia
        )

    [1] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
        )

    [2] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
        )

    [3] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
        )

    [4] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
        )

    [5] => Array
        (
            [brand_id] => 39
            [brand_name] => Shimano
            [brand_slug] => shimano
        )

    [6] => Array
        (
            [brand_id] => 39
            [brand_name] => Shimano
            [brand_slug] => shimano
        )

    [7] => Array
        (
            [brand_id] => 39
            [brand_name] => Shimano
            [brand_slug] => shimano
        )

我想创建一个如下所示的新数组：

    Array
(
    [0] => Array
        (
            [brand_id] => 36
            [brand_name] => Abu Garcia
            [brand_slug] => abu-garcia
            [count] => 1
        )

    [1] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
            [count] => 4
        )

    [2] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
            [count] => 4
        )

    [3] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
            [count] => 4
        )

    [4] => Array
        (
            [brand_id] => 41
            [brand_name] => Daiwa
            [brand_slug] => daiwa
            [count] => 4
        )

    [5] => Array
        (
            [brand_id] => 39
            [brand_name] => Shimano
            [brand_slug] => shimano
            [count] => 4
        )

    [6] => Array
        (
            [brand_id] => 39
            [brand_name] => Shimano
            [brand_slug] => shimano
            [count] => 4
        )

    [7] => Array
        (
            [brand_id] => 39
            [brand_name] => Shimano
            [brand_slug] => shimano
            [count] => 4
        )

这两个数组都是由 wordpress 创建的。 array1 是检查品牌猫中产品数量时函数的输出，其他数组提供品牌详细信息。谢谢

Answer 1

我想我明白你想做什么...

如果这些是您的数组示例：

$CountArray = array("abu-garcia"=>1,
                "daiwa"=>4,
                "shimano"=>4);
$DataArray = array(
            array("brand_id"=>36, "brand_name"=>"Abu Garcia", "brand_slug"=>"abu-garcia"),
            array("brand_id"=>41, "brand_name"=>"Daiwa", "brand_slug"=>"daiwa"),
            array("brand_id"=>39, "brand_name"=>"Shimano", "brand_slug"=>"shimano")
);

然后遍历第二个数组以构建一个新数组，并像这样从第一个数组添加 count 键：

$i = 0;
foreach($DataArray as $ItemArray){
    foreach($ItemArray as $Key=>$Value){
        $NewArray[$i][$Key] = $Value;
        $NewArray[$i]['count'] = 0;
        if(isset($CountArray[$ItemArray['brand_slug']])){
            $NewArray[$i]['count'] = $CountArray[$ItemArray['brand_slug']];         
        }
    }
    ksort($NewArray[$i]);
    $i++;
}
print_r($NewArray);

Answer 2

以最简单的方式，您可以这样做。假设您的第一个数组名称是 $first_array，第二个是 $second_array.

像

一样循环第二个

foreach($second_array as $index => $item)
{
    $second_array[$index]['count'] = $first_array[$item['brand_slug']];
}

echo "<pre>";
print_r($second_array);

Answer 3

array_merge 将一个或多个数组的元素合并在一起，以便将一个数组的值附加到前一个数组的末尾。它 returns 结果数组。

Example #array_merge() example

<?php
$array1 = array("color" => "red", 2, 4);
$array2 = array("a", "b", "color" => "green", "shape" => "trapezoid", 4);
$result = array_merge($array1, $array2);
print_r($result);
?>

在 php 中使用 2 个不同的数组创建一个新数组

Create a new array with using 2 different arrays in php

php

arrays

wordpress

array-map

array-merge