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问仅使用一个数组索引访问重复的JSON参数- PHP、JSON和Twitch API
EN

Stack Overflow用户

提问于 2015-04-09 04:39:43

回答 1查看 78关注 0票数 0

我目前正在尝试从Twitch获取全球攻击性数据流的列表，因为这是我目前拥有的：

$getTwitchResponse = file_get_contents('https://api.twitch.tv/kraken/search/streams?q=global%20offensive&limit=2');

$twitchJSON = json_decode($getTwitchResponse, true);

然后我输出这些值，这些值效果很好！

echo '<p>' . $twitchJSON['streams'][0]['game'] . '</p>'; //Output Counter-Strike: Global Offensive
echo '<p>' . $twitchJSON['streams'][0]['viewers'] . '</p>'; //Output 156

JSON：

{  
       "_total":1357,
       "_links":{  
          "self":"https://api.twitch.tv/kraken/search/streams?limit=2&offset=0&q=global+offensive",
          "next":"https://api.twitch.tv/kraken/search/streams?limit=2&offset=2&q=global+offensive"
       },
       "streams":[  
          {  
             "_id":13921379424,
             "game":"Counter-Strike: Global Offensive",
             "viewers":156,
             "video_height":720,
             "average_fps":59.9445764054,
             "created_at":"2015-04-08T18:55:03Z",
             "preview":{  
                "small":"http://static-cdn.jtvnw.net/previews-ttv/live_user_officialclickarn-80x45.jpg",
                "medium":"http://static-cdn.jtvnw.net/previews-ttv/live_user_officialclickarn-320x180.jpg",
                "large":"http://static-cdn.jtvnw.net/previews-ttv/live_user_officialclickarn-640x360.jpg",
                "template":"http://static-cdn.jtvnw.net/previews-ttv/live_user_officialclickarn-{width}x{height}.jpg"
             },
             "_links":{  
                "self":"https://api.twitch.tv/kraken/streams/officialclickarn"
             },
             "channel":{  
                "mature":true,
                "status":"CSGOJACKPOT Global!",
                "broadcaster_language":"en",
                "display_name":"OfficialClickarn",
                "game":"Counter-Strike: Global Offensive",
                "delay":0,
                "language":"sv",
                "_id":43599835,
                "name":"officialclickarn",
                "created_at":"2013-05-16T16:14:12Z",
                "updated_at":"2015-04-08T19:19:23Z",
                "logo":"http://static-cdn.jtvnw.net/jtv_user_pictures/officialclickarn-profile_image-e05d99008ae2c4f6-300x300.jpeg",
                "banner":null,
                "video_banner":"http://static-cdn.jtvnw.net/jtv_user_pictures/officialclickarn-channel_offline_image-321549419f9a329c-640x360.png",
                "background":null,
                "profile_banner":"http://static-cdn.jtvnw.net/jtv_user_pictures/officialclickarn-profile_banner-93174220f0f0de42-480.jpeg",
                "profile_banner_background_color":null,
                "partner":true,
                "url":"http://www.twitch.tv/officialclickarn",
                "views":351062,
                "followers":21946,
                "_links":{  
                   "self":"https://api.twitch.tv/kraken/channels/officialclickarn",
                   "follows":"https://api.twitch.tv/kraken/channels/officialclickarn/follows",
                   "commercial":"https://api.twitch.tv/kraken/channels/officialclickarn/commercial",
                   "stream_key":"https://api.twitch.tv/kraken/channels/officialclickarn/stream_key",
                   "chat":"https://api.twitch.tv/kraken/chat/officialclickarn",
                   "features":"https://api.twitch.tv/kraken/channels/officialclickarn/features",
                   "subscriptions":"https://api.twitch.tv/kraken/channels/officialclickarn/subscriptions",
                   "editors":"https://api.twitch.tv/kraken/channels/officialclickarn/editors",
                   "teams":"https://api.twitch.tv/kraken/channels/officialclickarn/teams",
                   "videos":"https://api.twitch.tv/kraken/channels/officialclickarn/videos"
                }
             }
          },
          {  
             "_id":13921066304,
             "game":"Counter-Strike: Global Offensive",
             "viewers":82,
             "video_height":720,
             "average_fps":24.5031518625,
             "created_at":"2015-04-08T18:31:06Z",
             "preview":{  
                "small":"http://static-cdn.jtvnw.net/previews-ttv/live_user_adamsonshow-80x45.jpg",
                "medium":"http://static-cdn.jtvnw.net/previews-ttv/live_user_adamsonshow-320x180.jpg",
                "large":"http://static-cdn.jtvnw.net/previews-ttv/live_user_adamsonshow-640x360.jpg",
                "template":"http://static-cdn.jtvnw.net/previews-ttv/live_user_adamsonshow-{width}x{height}.jpg"
             },
             "_links":{  
                "self":"https://api.twitch.tv/kraken/streams/adamsonshow"
             },
             "channel":{  
                "mature":false,
                "status":"RUSSIAN GLOBAL",
                "broadcaster_language":"ru",
                "display_name":"AdamsonShow",
                "game":"Counter-Strike: Global Offensive",
                "delay":0,
                "language":"ru",
                "_id":64615054,
                "name":"adamsonshow",
                "created_at":"2014-06-18T16:54:31Z",
                "updated_at":"2015-04-08T19:20:06Z",
                "logo":"http://static-cdn.jtvnw.net/jtv_user_pictures/adamsonshow-profile_image-28d03af41050b43f-300x300.jpeg",
                "banner":null,
                "video_banner":"http://static-cdn.jtvnw.net/jtv_user_pictures/adamsonshow-channel_offline_image-08c0871dd106eab3-640x360.png",
                "background":null,
                "profile_banner":null,
                "profile_banner_background_color":null,
                "partner":false,
                "url":"http://www.twitch.tv/adamsonshow",
                "views":61383,
                "followers":8533,
                "_links":{  
                   "self":"https://api.twitch.tv/kraken/channels/adamsonshow",
                   "follows":"https://api.twitch.tv/kraken/channels/adamsonshow/follows",
                   "commercial":"https://api.twitch.tv/kraken/channels/adamsonshow/commercial",
                   "stream_key":"https://api.twitch.tv/kraken/channels/adamsonshow/stream_key",
                   "chat":"https://api.twitch.tv/kraken/chat/adamsonshow",
                   "features":"https://api.twitch.tv/kraken/channels/adamsonshow/features",
                   "subscriptions":"https://api.twitch.tv/kraken/channels/adamsonshow/subscriptions",
                   "editors":"https://api.twitch.tv/kraken/channels/adamsonshow/editors",
                   "teams":"https://api.twitch.tv/kraken/channels/adamsonshow/teams",
                   "videos":"https://api.twitch.tv/kraken/channels/adamsonshow/videos"
                }
             }
          }
       ]
    }

然而，问题是，因为在同一数组中有两个查看器实例，我如何访问它们的不同值？例如: viewers = 156，other viewers = 82。但是因为它们在同一个数组中，所以我只能访问第一个数组(156)。

我试着把索引改成1，但很明显这行不通，因为他们的索引是唯一的。那么，我如何访问它们的不同值：

例如：

echo '<p>' . $twitchJSON['streams'][0]['viewers'] . '</p>'; //Output 156
echo '<p>' . something here . '</p>'; //Output 82

使用‘print_r’更新：

任何帮助都将不胜感激！

基兰

php

arrays

json

回答 1

Stack Overflow用户

发布于 2015-04-09 05:04:44

我找到答案了伙计们，

echo '<p>' . $twitchJSON['streams'][0]['viewers'] . '</p>';
echo '<p>' . $twitchJSON['streams'][1]['viewers'] . '</p>';

现在正在工作，由于某些原因，‘未定义的偏移’错误不再发生，我只是重新键入它，它与所需的输出工作！

感谢大家的帮助！

致以亲切的问候，

基兰

票数 0

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/29524925

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