parse multilevel json in php

Question

I am receiving a multilevel json like this:

{"id":"3",
"field2":"ssss",
"field3":[
         {"field31":"wwwww",
         "field32":"qqqq"},
         {"field31":"wwwww",
         "field32":"qqqq"},
         {"field31":"wwwww",
         "field32":"qqqq"},
   ]}

I am reading json values (first level) like this in php:

$json = file_get_contents('php://input');
$json_post = json_decode(utf8_decode($json), true);
$id = $json_post['id'];

But I don't know how to get the json in the second level. What is the simplest way? I just need to get the json in other variable like $json_post, I will read it in a for bucle to get each row of the json file

score 4 · Accepted Answer · answered May 15 '14 at 17:33

4

It's going to give you a PHP object if you run json_decode(utf8_decode($json));

echo $json_post->field3->field31;

EDIT: I missed that you were using the conversion to array. This is what the array would look like

    echo $json_post['field3']['field31'];

answered May 15 '14 at 17:33

Machavity

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Not when the second parameter is set to true. Then the result in an array. – John Conde May 15 '14 at 17:34
All my parameters are strings. Can I use that? – Biribu May 15 '14 at 17:36
1

@JohnConde Good point. Missed that and have amended. – Machavity May 15 '14 at 17:37
It works. I will accept when the timer allows me. Thanks – Biribu May 15 '14 at 17:40
One question, how can I check if the second level is empty? – Biribu May 15 '14 at 18:00
You can either use `isset()` or run a `foreach` – Machavity May 15 '14 at 18:31

parse multilevel json in php

1 Answers1