Question

我试图通过json_decode从json返回的输出中提取不同的信息，但我似乎无法访问该信息：

JSON：

{"photos":{"page":1,"pages":8,"perpage":100,"total":"784","photo":[
{"id":"3453456456","owner":"1111111111@N03","secret":"xxxxxxxx","server":"4544","farm":5,"title":"XXXXXXX","ispublic":1,"isfriend":0,"isfamily":0},
{"id":"5468564564","owner":"1111111111@N03","secret":"xxxxxxxx","server":"4529","farm":5,"title":"XXXXXXX","ispublic":1,"isfriend":0,"isfamily":0},

PHP：

$photos = json_decode($json);
foreach($photos as $photo){
$id = $photo->id;
$owner = $photo->owner;
$secret = $photo->secret;
echo $id.'<br/>';
echo $owner.'<br/>';
echo $secret.'<br/>';
}

Answer 1

由于JSON的深度，您必须在正确的级别启动循环。这是一个example：

$json = '{"photos":{"page":1,"pages":8,"perpage":100,"total":"784","photo":[
{"id":"3453456456","owner":"1111111111@N03","secret":"xxxxxxxx","server":"4544","farm":5,"title":"XXXXXXX","ispublic":1,"isfriend":0,"isfamily":0},
{"id":"5468564564","owner":"1111111111@N03","secret":"xxxxxxxx","server":"4529","farm":5,"title":"XXXXXXX","ispublic":1,"isfriend":0,"isfamily":0}]}}';

$photos = json_decode($json);

foreach($photos->photos->photo as $photo){
 $id = $photo->id;
 $owner = $photo->owner;
 $secret = $photo->secret;
 echo $id.'<br/>';
 echo $owner.'<br/>';
 echo $secret.'<br/>';
}

请注意，您的JSON中的第一个级别是＆＃34;照片＆＃34;第二个是＆＃34;照片＆＃34;。

使用PHP json_decode显示信息

1 个答案: