在foreach中獲取帖子索引的問題

Question

我有問題從php中的以下代碼獲取帖子索引

stdClass Object ( 
    [blog] => stdClass Object ( 
        [ask] => 1 
        [ask_anon] => 1 
        [ask_page_title] => Ask me anything 
        [can_subscribe] => 
        [description] => 
        [is_adult] => 
        [is_nsfw] => 
        [name] => fashion 
        [posts] => 3068 
        [reply_conditions] => 3 
        [share_likes] => 
        [subscribed] => 
        [title] => Fashion 
        [total_posts] => 3068 
        [updated] => 1511888740 
        [url] => http://fashion.tumblr.com/ 
        [is_optout_ads] => 1 
    ) 
    [posts] => Array ( 
            [0] => stdClass Object ( 
                    [type] => photo 
                    [blog_name] => fashion 
                    [id] => 167980084706 
                    [post_url] => http://fashion.tumblr.com/post/167980084706/art-by-lucamaininipsychodiva 
                    [slug] => art-by-lucamaininipsychodiva 
                    [date] => 2017-11-28 17:05:40 GMT 
                    [timestamp] => 1511888740 
                    [state] => published 
                    [format] => html 
                    [reblog_key] => TQXtN3TU 
                    [tags] => Array ( 
                            [0] => luca mainini 
                            [1] => gif 
                            [2] => art 
                            [3] => fashion 
                            [4] => design 
                            [5] => fashionontumblr 
                    ) 
                    [short_url] => https://tmblr.co/ZSVahx2SSPAtY 
                    [summary] => Art by @lucamaininipsychodiva 
                    [is_blocks_post_format] => 
                    [recommended_source] => 
                    [recommended_color] => 
                    [note_count] => 75 
                    [source_url] => http://lucamaininipsychodiva.tumblr.com/post/120540766379/gif-collage-for-vulkan-magazine 
                    [source_title] => lucamaininipsychodiva

Answer 1

您可以申請：-

$object->posts[0]->blog_name;

或者，如果您想使用foreach（）：-

foreach($object->posts as $key=>$value){
 echo $key;
 echo $value->id;
}

注意：-在第二個中， $key是子數組的索引，例如0、1、2、3 ..，而$value是子數組本身。

Answer 2

首先，首先要確定的是，當您從json解碼為數組時，您需要使用,true因此在此stdclass對象之前的步驟中使用$array=json_decode($myArray,true); 這將為您提供所需的數組。 在多維數組易於處理之后，您只需要在其周圍循環：

foreach ($array['posts'] as $row){
  echo $row['id'] //for example
}

如果仍然要使用stdclass對象，則仍然可以像這樣訪問它：

foreach ($result->posts as $row) {
    echo $row->id;
}

我總是更喜歡以數組來處理，但這取決於您。 這些是我最適合的2個解決方案選擇。