从Json解码时的PHP未定义索引

Question

我正在尝试Json解码一些东西并获得我想要的价值.但我得到PHP未定义的索引错误.这是我的代码.

<?php
$json = '[{"totalGamesPlayed":25,"championId":0}]';
$data = json_decode($json,true); 

$games = $data['totalGamesPlayed'];
echo $games;
?>

问题是"[""]"正在弄乱我的代码......我正在使用API​​来获取一些值.我得到的是:http: //pastebin.com/XrqkAbJf我需要totalGamesPlayed,除了零(82,106和24)之外的冠军ID以及这些ID的TOTAL_SESSIONS_WON和TOTAL_SESSIONS_LOST ...首先,让我们看看怎么样？我绕过"["和"]"符号,然后事情可能会更容易..提前谢谢!

Answer 1

像这样访问您的代码

$games = $data[0]['totalGamesPlayed'];

获取其他信息的代码

<?php

$json = 'PUT YOUR EXAMPLE JSON HERE';
$data = json_decode($json,true); 

$seasonWon = 0;
$seasonPlayed = 0;
foreach($data as $stats) {
    if($stats['championId'] != 0) {
        echo '<br><br>Total Games Played:'. $stats['totalGamesPlayed'];    
        echo '<br>champion Ids :'.$stats['championId'];
        foreach($stats['stats'] as $stat) {
            if($stat['statType'] == 'TOTAL_SESSIONS_WON') {
                $seasonWon = $stat['value'];
                echo '<br>TOTAL_SESSIONS_WON :'.$seasonWon;
            }

            if($stat['statType'] == 'TOTAL_SESSIONS_LOST')
            echo '<br>TOTAL_SESSIONS_LOST :'.$stat['value'];

            if($stat['statType'] == 'TOTAL_SESSIONS_PLAYED') {                
                $seasonPlayed = $stat['value'];
                echo '<br>TOTAL_SESSIONS_PLAYED :'.$seasonPlayed;                
            }
        }
        echo '<br>Games Ratio(TOTAL_SESSIONS_WON / TOTAL_SESSIONS_PLAYED): ('. $seasonWon.'/'.$seasonPlayed.'):'. ($seasonWon/$seasonPlayed);
    }
}