php获取json里面内容

$a = '{"status":"3","message":"","errCode":"0","data":[{"time":"2014-12-12 20:37","context":"到达：湖南湘潭公司 已收件"},{"time":"2014-12-12 21:31","context":"到达：湖南湘潭公司 发往：福建厦门分拨中心"},{"time":"2014-12-13 02:24","context":"到达：湖南长沙分拨中心"},{"time":"2014-12-17 20:02","context":"到达：福建厦门公司国贸分部 发往：福建厦门公司国贸分部"},{"time":"2014-12-17 20:33","context":"到达：福建厦门公司国贸分部 由 图片 签收"}],"html":"","mailNo":"1201519497579","expTextName":"韵达快递","expSpellName":"yunda","update":"1420006818","cache":"0","ord":"ASC","tel":"021-39207888"}';
 
$b = json_decode($a);
$status = $b->status;
....
$message = '';
foreach($b->data as $v){
    $message .= $v->time.'  '.$v->context."\r\n";
}

 $str = 你这段JSON
$obj = json_decode($str);

//这里status ，message， errCode就等于$obj ->status $obj ->message $obj ->errCode
//还有tel 也是外层的

foreach ($obj->data as $data) {
//这里会循环4次 每次都有$obj ->time $obj ->context

}

$jsonString = '....your json....';
$result = json_decode($jsonString, true);
$dataCount = count($result['data']);
if ($dataCount > 0) {
    for ($i = 0; $i < $dataCount; $i++) {
        // 这里处理每一条物流状态
    }
}

for ($i = 0; $i < $dataCount; $i++) {
        // 这里处理每一条物流状态
    }
 这个for里面要怎么写才能调用time 跟context这2个内容 呢

https://zhidao.baidu.com/question/177129645375351444.html

 

    
    
    //引入jquery的CDN
    



    

3.注意：php文件和html文件应该位于同一目录，否则会存在跨域问题。 
4.我是将这两个文件放在xampp下的htdocs目录。 
5.打开文件可以看到输出如下。 

https://blog.csdn.net/qq_36358940/article/details/77860225