比较JSON阵列 [英] Comparing json arrays

问题描述

我正在使用的Xbox API返回给定用户gameplayed信息的网站上。它返回JSON格式的结果：

  {
数据：{
玩家代号：主要纳尔逊
Gamerpic：HTTPS：\\ / \\ / avatar-ssl.xboxlive.com \\ /头像\\ /主要％20Nelson \\ /avatarpic-l.png
GameCount：779，
TotalEarnedGamerScore：63147，
TotalPossibleGamerScore：593465，
TotalEarnedAchievements：3429，
TotalPossibleAchievements：25498，
TotalPercentCompleted：13，
PlayedGames：[
{
ID：1297287449，
标题：光环4，
URL：HTTP：\\ / \\ / marketplace.xbox.com \\ / EN-US \\ /标题\\ / 1297287449
BoxArt：HTTPS：\\ / \\ / www.xboxleaders.com \\ / IMG \\ / boxart \\ /1297287449-small.jpg
LargeBoxArt：HTTPS：\\ / \\ / www.xboxleaders.com \\ / IMG \\ / boxart \\ /1297287449-large.jpg
EarnedGamerScore：705，
PossibleGamerScore：1500年，
EarnedAchievements：38，
PossibleAchievements：67，
PercentageCompleted：56.7，
LastPlayed：1363751187
}，
]
}，
统计：OK，
在：3.818，
Authed：假，
AuthedAs：空
}
 

我试图创建一个数组，将检查两个不同用户的信息，以便我可以创建一个for循环，只显示这两个用户都玩过游戏的标题和BoxArt（无论完成的百分比或其他变量）。我试过以下code：

 ＆LT; PHP
$玩家代号=使用isset（$ _ GET ['标签']）？ $ _GET ['标签']：空;
$ friendtag =使用isset（$ _ GET ['FTAG']）？ $ _GET ['FTAG']：空;
$ gamertag2 = urlen code（$玩家代号）;
$ friendtag2 = urlen code（$ friendtag）;
//获取游戏信息
$游戏= json_de code（url_get_contents（'http://www.xboxleaders.com/api/games.json?gamertag='.$gamertag2））;
$游戏= $游戏 - ＆GT;数据;
$ fgames = json_de code（url_get_contents（'http://www.xboxleaders.com/api/games.json?gamertag='.$friendtag2））;
$ fgames = $ fgames-＆GT;数据;
？＆GT;＆LT; PHP
$数组1 =数组（$游戏 - ＆GT; PlayedGames-＆GT;标题）;
$数组2 =阵列（$ fgames-＆GT; PlayedGames-＆GT;标题）;
$结果= array_intersect（$数组1，$数组2）;
的print_r（$结果）;
？＆GT;
 

但是，这总是返回一个空集。当我使用$游戏 - > PlayedGames的阵列，它合并两个数组并显示每个所有数据。我真的AP preciate手段，以比较两个用户阵列，这将使我的比赛的两个用户有共同的只是标题和Boxart。

解决方案

 函数GAME_TITLE（$游戏）{
    返回$游戏 - ＆GT;标题;
}
$数组1 = array_map（'GAME_TITLE'，$游戏 - ＆GT; PlayedGames）;
$数组2 = array_map（'GAME_TITLE'，$ fgames-＆GT; PlayedGames）;
$结果= array_intersect（$数组1，$数组2）;
的print_r（$结果）;
 

I'm working on a website utilizing an Xbox API that returns gameplayed information for a given user. It returns results in the json format:

{
"Data": {
"Gamertag": "Major Nelson",
"Gamerpic": "https:\/\/avatar-ssl.xboxlive.com\/avatar\/Major%20Nelson\/avatarpic-l.png",
"GameCount": 779,
"TotalEarnedGamerScore": 63147,
"TotalPossibleGamerScore": 593465,
"TotalEarnedAchievements": 3429,
"TotalPossibleAchievements": 25498,
"TotalPercentCompleted": 13,
"PlayedGames": [
{
"Id": 1297287449,
"Title": "Halo 4",
"Url": "http:\/\/marketplace.xbox.com\/en-US\/Title\/1297287449",
"BoxArt": "https:\/\/www.xboxleaders.com\/img\/boxart\/1297287449-small.jpg",
"LargeBoxArt": "https:\/\/www.xboxleaders.com\/img\/boxart\/1297287449-large.jpg",
"EarnedGamerScore": 705,
"PossibleGamerScore": 1500,
"EarnedAchievements": 38,
"PossibleAchievements": 67,
"PercentageCompleted": 56.7,
"LastPlayed": 1363751187
},
]
},
"Stat": "ok",
"In": 3.818,
"Authed": "false",
"AuthedAs": null
}

I'm trying to create an array that will check the info of two different users so I can create a for loop to display only the game Titles and BoxArt both users have played (regardless of percentage complete or other variables). I've tried the following code:

<?php 
$gamertag = isset($_GET['tag']) ? $_GET['tag'] : null;
$friendtag = isset($_GET['ftag']) ? $_GET['ftag'] : null;
$gamertag2 = urlencode($gamertag);
$friendtag2 = urlencode ($friendtag);
// Get game information
$games = json_decode(url_get_contents('http://www.xboxleaders.com/api/games.json?gamertag='.$gamertag2));
$games = $games->Data;
$fgames = json_decode(url_get_contents('http://www.xboxleaders.com/api/games.json?gamertag='.$friendtag2));
$fgames = $fgames->Data;
?>

<?php 
$array1 = array($games->PlayedGames->Title);
$array2 = array($fgames->PlayedGames->Title);
$result = array_intersect($array1, $array2);
print_r($result);
?>

But this always returns an empty set. When I just use $games->PlayedGames for the arrays, it merges the two array and displays all the data in each. I would really appreciate a means to compare two users array that will give me just the Titles and Boxart of the games two users have in common.

解决方案

function game_title ($game) {
    return $game->Title;
}
$array1 = array_map('game_title', $games->PlayedGames);
$array2 = array_map('game_title', $fgames->PlayedGames);
$result = array_intersect($array1, $array2);
print_r($result);

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