How to select value from JSON array

Question

I am trying to select a variable from an array (at least I think it's stored as an array):

$data = json_encode($response);
file_put_contents('file.txt', $data);

gives

"status":200,"response":{

"api_id":"0f42d6be-8ed2-11e3-822e-22135",
"bill_duration":36,
"call_duration":36,
"total_rate":"0.00300"}

}

How can I select the call_duration value (in php)? I've tried $response['call_duration'], which I thought should work but returns nothing?

I don't know about php, but if the response has JSON in it, I could do something like var object = JSON.parse(response) and access your property like object.call_duration — KrishnaDhungana
– KrishnaDhungana, Commented Feb 6, 2014 at 2:06
You guys are looking too far into this. He already had a php array called $response. Then converted it to json and put it in a file to examine it. The question asks how to get the value of call_duraton, which is trivial: $response['response']['call_duration'] — Daniel Howard
– Daniel Howard, Commented Feb 6, 2014 at 2:09
What happens when you do print_r($response). That is usually the cleanest way to find out how to access elements from the structure. — Floris
– Floris, Commented Feb 6, 2014 at 2:10
@DanielHoward yes - I realized this before you posted your comment. You have it right, I think. — Floris
– Floris, Commented Feb 6, 2014 at 2:11

Sharanya Dutta · Accepted Answer · 2014-02-06 02:20:46Z

3

$response['call_duration'] was very nearly correct, but I think you need:

$response['response']['call_duration']

Looking at your output after converting to json, I think the original array, $response, looks like this (in PHP array format)

$response = array(
  'status'=>200,
  'response'=>array(
    'api_id'=>'0f....etc',
    'bill_duration'=>36,
     ... etc
  )
);

So, you need to go an extra level deep into the array to get call_duration.

Sharanya Dutta

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answered Feb 6, 2014 at 2:03

Daniel Howard

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