PHP/JSON - how to parser that stdClass Object?

Question

I have some JSON, and I've run it through some PHP that basically parses the JSON and decodes it as follows:

$request = array(
'object' => 'App',
'action' => 'getList',
'args' => array(
'sort' => 1,
'appsPerPage' => 15,
'page' => 1,
'deviceid' => 1));


$wrapper = array(
'request' => json_encode($request));

$wrapper = urlencode(json_encode($wrapper));

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://api.apptrackr.org/');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "request=$wrapper");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

$response = json_decode($response);

result:

    object(stdClass)#2 (3) { ["code"]=> int(200) ["data"]=> string(14100) "{"apps": {"id":303917165,"add_date":1314083737,"last_modification":1314083737,"name":"my Fish 3D Aquarium","seller":"

and more few "apps" at the end ...

now, i try this:

    foreach ($response->apps as $app) {
    .......
    ......
    }

it's not working...need help.

thanks

How do I get the "data" value to use on foreach and parser all "apps" arrays ? — motioz
– motioz, Commented Aug 23, 2011 at 8:56

J0HN · Accepted Answer · 2011-08-23 08:56:26Z

3

Looks like your backend method return something like

{code:200, data: '{"apps":{"id":303917165, ....}"};

Note that data is json_encoded string.

The simple way to workaround this is:

$response = json_decode($response);
$real_response = json_decode($response->data,true);
//$real_response is an array with 'apps' key containing your data

The right way is to fix backend to return just data, so the raw response is something like

{"apps":{"id":303917165,....}}

answered Aug 23, 2011 at 8:56

J0HN

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Comments

xdazz · Accepted Answer · 2011-08-23 08:54:29Z

0

$response->apps is not an array. $response->data is a json format string. You can use json_decode to turn it to an array.

answered Aug 23, 2011 at 8:54

xdazz

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Comments

Mez · Accepted Answer · 2011-08-23 08:56:29Z

0

IT looks like your object is something like:-

class Object {
    var code = 200;
    var data = "Big long JSON string here";
}

You should do something like

$data = json_decode($data);
foreach ($data->apps as $app)
{
    //do stuff here
}

answered Aug 23, 2011 at 8:56

Mez

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2 Comments

motioz Over a year ago

i get: Invalid argument supplied for foreach()

dakshbhatt21 Over a year ago

Here json_decode($data) return stdClass object that can't be use in foreach so it throws error. A good practice is to use is_array($data) before foreach. And for convert stdClass to array you can use json_decode($data, true).

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