打印 JSON 数组 - steam web API

Question

我一直在尝试使用 JSON 格式的 Steam Web API。我一直在尝试打印 API 给出的数组输出。

<?php
    $id = $_GET['id'];
    $key = 'xxx';
    
    $link = file_get_contents('http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=' . $key . '&steamids=' . $id . '&format=json');
    $profile_info = json_decode($link);
    
    $json_response = json_encode($profile_info->response);
    print($json_response['steamid']);
?>

该密钥显然已被 Steam 生成器给我的密钥替换，但我的这段代码片段仅返回字符

{

，它应该返回

76561197989628470

，这是我的

steamid

。

这些是 JSON 格式的数组

{    
   "response": {    
      "players": [    
         {    
            "steamid": "76561197989628470",    
            "communityvisibilitystate": 3,    
            "profilestate": 1,    
            "personaname": "Archey",    
            "lastlogoff": 1334719151,    
            "commentpermission": 1,    
            "profileurl": "http://steamcommunity.com/id/Archey6/",    
            "avatar": "http://media.steampowered.com/steamcommunity/public/images/avatars/74/745b633a08937a5cf52bb44c2bdd3552f85455d7.jpg",    
            "avatarmedium": "http://media.steampowered.com/steamcommunity/public/images/avatars/74/745b633a08937a5cf52bb44c2bdd3552f85455d7_medium.jpg",    
            "avatarfull": "http://media.steampowered.com/steamcommunity/public/images/avatars/74/745b633a08937a5cf52bb44c2bdd3552f85455d7_full.jpg",    
            "personastate": 1,    
            "primaryclanid": "103582791432066081",    
            "timecreated": 1177637717,    
            "loccountrycode": "CA",    
            "locstatecode": "SK"    
         }    
      ]    
   }

Answer 1

为什么要先解码然后编码 json？

<?php
    $id = $_GET['id'];
    $key = 'xxx';

    $link = file_get_contents('http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=' . $key . '&steamids=' . $id . '&format=json');
    $myarray = json_decode($link, true);

    print $myarray['response']['players'][0]['steamid'];
?>

或者如果您确实需要再次编码：

<?php
    $id = $_GET['id'];
    $key = 'xxx';

    $link = file_get_contents('http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=' . $key . '&steamids=' . $id . '&format=json');
    $profile_info = json_decode($link);

    $json_response = json_encode($profile_info->response->players);
    $decoded = json_decode($json_response, true);
    print $json_response['steamid'];
?>