how to convert json objects of array into the php array

Question

I have a json string i which has a object in one one there is one json array & another object i want to first the json array then convert into php array & other json object into the php variable.Please tell me how to do this. I have stdclass but i am not able to get accurate data.

Json String

{
 "data": [
 {
 "ques_name": "no",
 "ques_id": "1"
 }, {
 "ques_name": "yes",
 "ques_id": "2"
 }, {
 "ques_name": "no",
 "ques_id": "3"
 }, {
 "ques_name": "yes",
 "ques_id": "4"
 }, {
 "ques_name": "no",
 "ques_id": "5"
 }, {
 "ques_name": "yes",
 "ques_id": "6"
 }, {
 "ques_name": "no",
 "ques_id": "7"
 }
 ],
 "UserId": 163
}

I used following code to get the array but it gives me array of size 14 where as size should be 7

 $params=$_GET['params'];
 $arr=array();
 $decode=json_decode($params);
 $arr=$decode->data;
 print_r($arr);

• deceze: What exactly does that print_r give you?

Answer 1

json_decode($array) will convert your json object into an array.

Edit:
you can try json_decode($array, true);. That way returned objects will be converted into associative arrays.

Edit2: using my code in edit section (json_decode($array, true);), i get the following array (which seems ok to me):

Array
(
 [data] => Array
 (
 [0] => Array
 (
 [ques_name] => no
 [ques_id] => 1
 )
 [1] => Array
 (
 [ques_name] => yes
 [ques_id] => 2
 )
 [2] => Array
 (
 [ques_name] => no
 [ques_id] => 3
 )
 [3] => Array
 (
 [ques_name] => yes
 [ques_id] => 4
 )
 [4] => Array
 (
 [ques_name] => no
 [ques_id] => 5
 )
 [5] => Array
 (
 [ques_name] => yes
 [ques_id] => 6
 )
 [6] => Array
 (
 [ques_name] => no
 [ques_id] => 7
 )
 )
 [UserId] => 163
)

Edit3: for what you ask on how to get the id/name part of the array, here is a small example code:

$jsonData= ''; // put here your json object
$arrayData = json_decode($jsonData, true);
if (isset($arrayData['data']))
{
foreach ($arrayData['data'] as $data)
{
echo 'id='.$data['ques_id'].', name='.$data['ques_name'].'<br>';
}
}

• Tarun Sharma: I know but it give me object of std class
• Tarun Sharma: I used following code to get the array but it gives me array of size 14 where as size should be 7
• Veerendra: @TarunSharma what issue you are having in accessing it with object ?
• andrew: @TarunSharma check my edit2 please and tell me if this is what you expect
• Tarun Sharma: it only print with print_r how can i access the first array which icntains id & name & save rhem in array

Answer 2

You can also try:

array = get_object_vars(jsonData)

As per http://php.net/manual/en/function.get-object-vars.php:

Returns an associative array of defined object accessible non-static properties for the specified object in scope. If a property has not been assigned a value, it will be returned with a NULL value.

• Petr Sobotka: Especially useful when you want to keep the whole JSON in object style and convert only parts of it to arrays.

Answer 3

There are lots of ways to achieve the same some of them are below

$array = (array) json_decode($xml_variable);

From http://www.php.net/manual/en/language.types.array.php

$array = json_decode(json_encode($xml_varible), true);

or

function object_to_array(json_decode($xml_varible))
{
 if (is_array($data) || is_object($data))
 {
 $result = array();
 foreach ($data as $key => $value)
 {
 $result[$key] = object_to_array($value);
 }
 return $result;
 }
 return $data;
}

or

function object_to_array(json_decode($xml_varible)) 
{
if ((! is_array($data)) and (! is_object($data))) return 'xxx'; //$data;
$result = array();
$data = (array) $data;
foreach ($data as $key => $value) {
 if (is_object($value)) $value = (array) $value;
 if (is_array($value)) 
 $result[$key] = object_to_array($value);
 else
 $result[$key] = $value;
}
return $result;
}

Answer 4

 $phpArray = array_map(function($value,$key){
 return ['key' => $key, 'value' => $value];
 },$jsonObject,array_keys($jsonObject));