访问数组中的数据

Question

我想要做的是阅读信息，并能够获取每个游戏的数据，以及哪些团队参加比赛，谁赢了等等。我已经尝试过所有事情，但似乎无法做到这一点。

这是我的数据结构：

stdClass Object (
    [_links] => Array (
        [0] => stdClass Object (
        [self] => http://api.football-data.org/alpha/soccerseasons/354/fixtures 
        )
        [1] => stdClass Object (
        [soccerseason] => http://api.football-data.org/alpha/soccerseasons/354 
        ) 
    ) 
    [count] => 10 
    [fixtures] => Array (
        [0] => stdClass Object (
            [_links] => stdClass Object (
                [self] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/fixtures/137842 
                    ) 
                    [soccerseason] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/soccerseasons/354 
                    ) 
                    [homeTeam] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/teams/338 
                    ) 
                    [awayTeam] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/teams/70 
                    ) 
            ) 
            [date] => 2015-01-17T15:00:00Z 
            [status] => FINISHED 
            [matchday] => 22 
            [homeTeamName] => Leicester City 
            [awayTeamName] => Stoke City FC 
            [result] => stdClass Object (
                [goalsHomeTeam] => 0 
                [goalsAwayTeam] => 1 
            )
        )
        [1] => stdClass Object (
            [_links] => stdClass Object (
                [self] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/fixtures/136840 
                    )
                    [soccerseason] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/soccerseasons/354 
                    ) 
                    [homeTeam] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/teams/72 
                    ) 
                    [awayTeam] => stdClass Object (
                    [href] => http://api.football-data.org/alpha/teams/61 
                    )
            )
            [date] => 2015-01-17T15:00:00Z 
            [status] => FINISHED 
            [matchday] => 22 
            [homeTeamName] => Swansea City 
            [awayTeamName] => Chelsea FC 
            [result] => stdClass Object (
                [goalsHomeTeam] => 0 
                [goalsAwayTeam] => 5 
                )
            )
    )
)

例如：我想知道＆＃34; homeTeamName＆＃34;，＆＃34; awayTeamName＆＃34;，＆＃34; goalsHomeTeam＆＃34;，＆＃34; goalsAwayTeam＆的价值＃34; ...

Answer 1

很难说，因为你没有发布你正在使用的代码，但我怀疑你是混淆了结构类型。您发布的内容实际上是一个对象 - stdClass的一个实例，看起来像数组元素的项实际上是该对象的属性。因此，您需要使用->propertyName的相应访问方法，而不是['propertyName']：

// YES
echo $data->fixtures[0]->homeTeamName;

// NO
echo $data['fixtures'][0]['homeTeamName'];

为了获得每个游戏的数据（或者我认为是＃34;游戏＆＃34;项目），你会这样做：

foreach ($data->fixtures as $game) {
    echo $game->homeTeamName;
    echo $game->awayTeamName;
    echo $game->result->goalsHomeTeam;
    echo $game->result->goalsAwayTeam;
    // etc..
}

这似乎也是使用json_decode()解析的API的返回值。如果是这种情况，您可以通过将true作为第二个参数传递给json_decode()来实际使其成为一个数组：

$data = json_decode($response, true);

foreach ($data['fixtures'] as $game) {
    echo $game['homeTeamName'];
    echo $game['awayTeamName'];
    echo $game['result']['goalsHomeTeam'];
    echo $game['result']['goalsAwayTeam'];
    // etc..
}