Parsing JSON - getting null output - PHP

Question

My code:

$json_response = json_decode($response, true);
$tag= $json_response['results']['tags'][0]['tag'];
print $tag;

My JSON:

{
  "results": [
    {
      "tagging_id": null,
      "image": "image.jpg",
      "tags": [
        {
          "confidence": 100,
          "tag": "herb"
        },
        {
          "confidence": 98.3637619018555,
          "tag": "plant"
        }
      ]
    }
  ]
}

I am trying to output "herb". I have looked up through examples but cannot figure out where the bug is.

I am reading results and then the trees.

Do a print_r($json_response); to see the nesting. $tag = $json_response['results'][0]['tags'][0]['tag']; — AbraCadaver
– AbraCadaver, Commented Jun 19, 2018 at 18:15
Position results is an array of objects; in this case there is only one object in the array. — MonkeyZeus
– MonkeyZeus, Commented Jun 19, 2018 at 18:23
Heh... this issue is the exact opposite of a prior issue you had: stackoverflow.com/questions/41488760/… Thats kinda funny ;) — IncredibleHat
– IncredibleHat, Commented Jun 19, 2018 at 18:41

Rayne · Accepted Answer · 2018-06-19 18:21:00Z

3

You have to fetch the first element inside ['results'].

echo $json_response['results'][0]['tags'][0]['tag'];

answered Jun 19, 2018 at 18:21

Rayne

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