PHP/Wordpress：如何修改 foreach() 以特定方式输出我的数组

Question

主要编辑：重新定义问题，因为这可能更容易解决......

我正在尝试在 Wordpress 中使用 PHP 代码生成 JSON 微数据。我目前正在使用 foreach() 方法循环浏览页面上的帖子列表，将它们的缩略图、标题和链接数据放入一个数组中，然后我会将该数组编码为 JSON 微数据。但是，我使用 foreach() 组装的数组并没有按我想要的方式输出数据。

我花了几个小时试图让这部分数据正确输出，但无济于事。

--

我想要实现的目标（使用 print_r() 查看和测试我的 PHP 代码） - 例如而不是像[0] 这样的索引号。 [1] 等，我希望每个数组都输出[associatedMedia]，如下所示：

Array
(
    [associatedMedia] => Array
        (
            [image] => http://www.website.com/thumbnail.jpg
            [name] => post title
            [url] => http://www.website.com/the-post
        )
    [associatedMedia] => Array
        (
            [image] => http://www.website.com/second-thumbnail.jpg
            [name] => second post title
            [url] => http://www.website.com/the-second-post
        ) 
    // And so on...
)

我目前的结果：

Array
(
    [0] => Array
        (
            [image] => http://www.website.com/first-thumbnail.jpg
            [name] => first post title
            [url] => http://www.website.com/the-post-one
        )

    [1] => Array
        (
            [image] => http://www.website.com/second-thumbnail.jpg
            [name] => second post title
            [url] => http://www.website.com/the-post-two
        )

    [2] => Array
        (
            [image] => http://www.website.com/third-thumbnail.jpg
            [name] => third post title
            [url] => http://www.website.com/the-post-three
        ) // And so on...
)

我的 foreach 方法：

// other PHP  code

global $post;
global $wp_query;

$category = $wp_query->get_queried_object();
$args = array( 'category' => $category->cat_ID );
$posts = get_posts( $args );

$post_details = array();
$i = 0;

foreach( $posts as $post ) {
        setup_postdata($post);   
    $thumb_url = wp_get_attachment_image_src( get_post_thumbnail_id(),'thumbnail' );
    $post_thumbnails['image'] = $thumb_url[0];
    $post_titles['name'] = get_the_title();
    $post_links['url'] = get_permalink();

    $post_details[$i]['image'] = $post_thumbnails['image'];
    $post_details[$i]['name'] = $post_titles['name'];
    $post_details[$i]['url'] = $post_links['url'];
    $i++;
};

wp_reset_postdata(); 

print_r($post_details); 

我才刚刚开始接触更高级的编程，而且我确信我上面的代码看起来很粗糙。因此，任何关于如何缩短它的帮助或提示将不胜感激。

编辑：添加更多$post相关代码

Answer 1

使用这个

$array_details['associatedMedia'][$i] = $post_details[$i];

而不是

$array_details['associatedMedia'] = $post_details[$i];

更新：

数组元素的键应该是唯一的。 使用以下任何一种格式来获得所需的结果。

foreach( $posts as $post ) {
    ....
    $array_details['associatedMedia'][$i] = $post_details[$i];
    i++;
}

结果：

Array
(
   ['associatedMedia'] => Array(   
       [0] => Array(
                [image] => http://www.website.com/first-thumbnail.jpg
                [name] => first post title
                [url] => http://www.website.com/the-post-one
        )
        [1] => Array(
                [image] => http://www.website.com/second-thumbnail.jpg
                [name] => second post title
                [url] => http://www.website.com/the-post-two
        )
        [2] => Array(
                [image] => http://www.website.com/third-thumbnail.jpg
                [name] => third post title
                [url] => http://www.website.com/the-post-three
        ) // And so on...
  )
)

或

foreach( $posts as $post ) {
    ....
    $array_details[$i]['associatedMedia']= $post_details[$i];
    i++;
}

结果：

Array
(
     [0] => Array(
        ['associatedMedia'] => Array( 
                [image] => http://www.website.com/first-thumbnail.jpg
                [name] => first post title
                [url] => http://www.website.com/the-post-one
            )
    )

  [1] => Array(
       ['associatedMedia'] => Array( 
                [image] => http://www.website.com/second-thumbnail.jpg
                [name] => second post title
                [url] => http://www.website.com/the-post-two
        )
    )

 [2] => Array(
      ['associatedMedia'] => Array( 
                [image] => http://www.website.com/third-thumbnail.jpg
                [name] => third post title
                [url] => http://www.website.com/the-post-three
        )
    ) // And so on...

)

Answer 2

只需删除 $i++ 即可 foreach 右括号。 你定义 $i=0 对于 foreach 的第一次迭代，它递增到 1。 然后你分配 $array_details['associatedMedia'] = $post_details[$i], 实际上 $array_details['associatedMedia'][0] = $post_details[1];

对不起我的“技术”英语。 （：

更新

foreach( $posts as $key => $post ) {

...

$array_details[$key]['associatedMedia'] = $post_details[$i]