PHP多维数组foreach不工作

Question

我有一个数组。我想让每个photosArray都是唯一项。例如:在我的Facebook中，如果我发布了一张图片，那么photosArray有一个项目，但如果我在一个帖子中发布了多张图片，那么photosArray有多个项目。

现在我想打印所有的照片。

Array
(
    [0] => Array
        (
            [0] => Array
                (
                    [photosArray] => Array
                        (
                            [0] => Array
                                (
                                    [__type] => File
                                    [name] => e24da5a6-e5a1-4d91-a8c7-64d046759382-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/e24da5a6-e5a1-4d91-a8c7-64d046759382-file
                                )
                            [1] => Array
                                (
                                    [__type] => File
                                    [name] => e4029a4a-e928-4afd-8cf1-3a9084e40126-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/e4029a4a-e928-4afd-8cf1-3a9084e40126-file
                                )
                            [2] => Array
                                (
                                    [__type] => File
                                    [name] => 5b7e30c7-7283-4115-b177-08e5652f80b1-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/5b7e30c7-7283-4115-b177-08e5652f80b1-file
                                )
                        )

                    [createdAt] => 2014-04-20T13:49:00.012Z
                    [updatedAt] => 2014-04-20T13:49:00.012Z
                    [postid] => 12
                )
            [1] => Array
                (
                    [photosArray] => Array
                        (
                            [0] => Array
                                (
                                    [__type] => File
                                    [name] => d77c7975-bf50-4a2c-ad9e-975d2cd4c47b-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/d77c7975-bf50-4a2c-ad9e-975d2cd4c47b-file
                                )
                            [1] => Array
                                (
                                    [__type] => File
                                    [name] => 730110b0-980b-4e40-be07-81509cb91efa-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/730110b0-980b-4e40-be07-81509cb91efa-file
                                )
                            [2] => Array
                                (
                                    [__type] => File
                                    [name] => 9f246b77-cdf5-409c-8a99-5a0188dbcca9-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/9f246b77-cdf5-409c-8a99-5a0188dbcca9-file
                                )
                        )

                    [createdAt] => 2014-04-20T13:57:08.231Z
                    [updatedAt] => 2014-04-20T13:57:08.231Z
                    [postid] => 112
                )
            [2] => Array
                (
                    [photosArray] => Array
                        (
                            [0] => Array
                                (
                                    [__type] => File
                                    [name] => 2c85f3be-69d8-4ca1-be51-8848bb73eb78-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/2c85f3be-69d8-4ca1-be51-8848bb73eb78-file
                                )
                        )

                    [createdAt] => 2014-04-21T07:45:52.829Z
                    [updatedAt] => 2014-04-21T07:45:52.829Z
                    [postid] => 172
                )


            [3] => Array
                (
                    [photosArray] => Array
                        (
                            [0] => Array
                                (
                                    [__type] => File
                                    [name] => 6fd7458f-0ade-4bc6-9567-04c6bc197ea3-file
                                    [url] => http://files.parse.com/c2dcf728-e2a3-4b2d-a8c8-6ec9b3c6502a/6fd7458f-0ade-4bc6-9567-04c6bc197ea3-file
                                )
                        )
                    [createdAt] => 2014-04-21T07:45:52.829Z
                    [updatedAt] => 2014-04-21T07:45:52.829Z
                )
        )
)

我正在尝试这个代码，但它不工作

foreach($specified_post_photo_array AS $item)
{

    foreach($item['photosArray'] AS $pitem)
    {
        $photo=$pitem['url'];

    }
}

But Its show no result

Answer 1

你应该把你的代码改成:

foreach($specified_post_photo_array[0] AS $item)
{

    foreach($item['photosArray'] AS $pitem)
    {
        $photo=$pitem['url'];

    }
}

Answer 2

试试这个代码…

$specified_post_photo_array = $specified_post_photo_array[0];
foreach($specified_post_photo_array as $key => $value)
{
   echo '<br> Photo 1 : '. $value['photosArray'][0]['url'];
   echo '<br> Photo 2 : '. $value['photosArray'][1]['url'];
   echo '<br> Photo 3 : '. $value['photosArray'][2]['url']; 
}

希望这有帮助…!!