Question

我有一个这样的数组：

Array
(
    [count] => 2
    [results] => Array
        (
            [0] => Array
                (
                    [title] => My Title 1
                    [description] => My amazing description
                    [Images] => Array
                        (
                            [0] => Array
                                (
                                    [pic_url] => https://my.pic.url/01/pic01-001.jpg
                                )

                        )

                )

            [1] => Array
                (
                    [title] => My Title 2
                    [description] => Yet another amazing description
                    [Images] => Array
                        (
                            [0] => Array
                                (
                                    [pic_url] => https://my.pic.url/02/pic02-001.jpg
                                )

                            [1] => Array
                                (
                                    [pic_url] => https://my.pic.url/02/pic02-002.jpg
                                )

                        )

                )



        )

)

数组中可能有1个项目或100个产品，每个产品的数量可能介于1-5 [Images]之间。我怎样才能遍历每一个，以便最终我有类似的东西：

 Title: 
    My Title 2
 Description:
    Yet another amazing description
 Images: 
    https://my.pic.url/02/pic02-001.jpg
    https://my.pic.url/02/pic02-002.jpg

我能够以$decoded['results']['0']['title']为例获得标题，但我无法弄清楚如何显示每个标题以及每个标题的未知（1到5）图像网址数量

Answer 1

您可以在此轻松使用foreach。此外，请务必首先迭代result密钥，例如$arr['result']。如果此代码将放在前端，您可以执行以下操作：

$arr = array( /* your array content */ );

foreach ($arr['results'] as $result) {
    ?>
    <div>
        <div>Title:<?= $result['title'] ?></div>
        <div>Description:<?= $result['description'] ?></div>
        <div>
            Images:
            <?php foreach ($result['Images'] as $image) { ?>
                <div><?= $image['pic_url'] ?></div>
            <?php } ?>
        </div>
    </div>
    <?php
}

Answer 2

如果我理解你的问题，这很容易。循环遍历每个结果然后在foreach内有另一个foreach循环通过图像。例如

foreach($product as $prod)
{
 //logic goes here
 foreach($prod['images'] as $img)
 {
   //do stuff with image
 }

}

如何在不知道有多少项的情况下使用foreach遍历多维数组？

2 个答案: