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无序播放不会改变顺序

shuffle php

0

Eoin · 技术社区 · 6 年前

我通过 Simple XML . 我把它从 arrays / objects 对所有 array .

我想将输出随机排列,但出于某种原因,它总是按日期顺序排列。

我下面的代码以及我的 print_r 陈述

PHP

$xml = simplexml_load_file($feed);
$order = 1;
$videoFeed   = json_decode(json_encode(array($xml)), true); 
if ($order == 1) {
    shuffle ( $videoFeed );
}
print_r($videoFeed);

打印($videofeed)

Array
(
    [0] => Array
        (
            [link] => Array
                (
                    [@attributes] => Array
                        (
                            [rel] => self
                            [href] => https://www.youtube.com/feeds/videos.xml?playlist_id=PLx0GbZ0m42LqeIybI2x_bBLGlo85-5VNg
                        )

                )

            [id] => yt:playlist:PLx0GbZ0m42LqeIybI2x_bBLGlo85-5VNg
            [title] => Best Joomla! Videos
            [author] => Array
                (
                    [name] => Eoin Oliver
                    [uri] => https://www.youtube.com/channel/UCGkX76DCQlWTdjP3CWNbC-A
                )

            [published] => 2019-06-28T17:37:33+00:00
            [entry] => Array
                (
                    [0] => Array
                        (
                            [id] => yt:video:fouYgPJR5Jc
                            [title] => JD19AT  - Optimizing the Joomla back-end
                            [link] => Array
                                (
                                    [@attributes] => Array
                                        (
                                            [rel] => alternate
                                            [href] => https://www.youtube.com/watch?v=fouYgPJR5Jc
                                        )

                                )

                            [author] => Array
                                (
                                    [name] => J and Beyond e.V.
                                    [uri] => https://www.youtube.com/channel/UCy6ThiEDnalZOd_pgtpBk1Q
                                )

                            [published] => 2019-03-30T16:25:40+00:00
                            [updated] => 2019-04-09T20:16:34+00:00
                        )

                    [1] => Array
                        (
                            [id] => yt:video:70Kx00H_cLI
                            [title] => JD19AT  - KEYNOTE - Introducing Joomla 4 for Content Creators
                            [link] => Array
                                (
                                    [@attributes] => Array
                                        (
                                            [rel] => alternate
                                            [href] => https://www.youtube.com/watch?v=70Kx00H_cLI
                                        )

                                )

                            [author] => Array
                                (
                                    [name] => J and Beyond e.V.
                                    [uri] => https://www.youtube.com/channel/UCy6ThiEDnalZOd_pgtpBk1Q
                                )

                            [published] => 2019-03-30T08:55:39+00:00
                            [updated] => 2019-04-29T13:10:49+00:00
                        )
~

饲料可以工作,但它总是以相同的顺序。我误解了 $shuffle 功能?

0 回复 | 直到 6 年前

1

1

Eoin 6 年前

问题是,您在写入时向数据添加了一个额外级别的数组容器。 array($xml) $videoFeed 和重新排序没有效果。

$videoFeed   = json_decode(json_encode($xml), true);

entry

if ($order == 1) {
    shuffle($videoFeed['entry']);
}

避免过度使用 ['entry'] array_chunk 您可以将阵列上移一步。首先将它设置为数组,以防将来需要数组的任何部分。然后像这样向上走一步:

$videoFeed      = json_decode(json_encode($xml), true); 
$videoFeedEntry = $videoFeed['entry'];
if ($order == 1) {
    shuffle($videoFeedEntry);
}

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