嵌套Json php for循环状态[0]问题

Question

Hi I have a Json format like below:

{
   "result":0,
   "status":[
      {
         "id":"00001",
         "vid":"yes"
      },
      {
         "id":"00002",
         "vid":"yes"
      },
      {
         "id":"00003",
         "vid":"no"
      }
   ]
}

I want to use the json_decode function in PHP to decode the id values such as below:

 00001
 00002
 00003

here is the code I am using:

$url = file_get_contents("URL");

foreach(json_decode($url, true) as $key=>$value){
    foreach($value->status[0] as $key1=>$value1){
        echo $value1->id;
    }
}

The problem seems to be with status[0] as far as I know using status[0] is the only way to select the status key. However I can't get the loop to work correctly.

I get the error: Trying to get property of non-object meaning status[0] is not finding status in the Json array however I have no idea why this is since it works when I pull a value like:
$id = $url->status[0]->id;

If anyone has any suggestions or advice I'd greatly appreciate it. Thanks

Answer 1

I removed some commas from your json data.

Code: demo: https://3v4l.org/C1Mda

$json = '{"result":0,"status":[{"id":"00001"},{"id":"00002"},{"id":"00003"}]}';

foreach(json_decode($json, true)['status'] as $status){
    echo $status['id'] , "
";
}

Output:

00001
00002
00003

Because you are using json_decode's true parameter, an array is generated. You need to use square bracket syntax.

Or you can use objects:

foreach(json_decode($json)->status as $status){
    echo $status->id , "
";
}