parsing array (json) with PHP foreach

Question

I want to write for each for separe the object name and value which is inside 'ques' array.

my array as

 [
 {
    "ques": [
        {
            "name": "comment",
            "value": "comment me for the reason",
            "sur_id": "1",
            "user_id": "[email protected]",
            "pagename": "question_response"
        },
        {
            "name": "check-box[]",
            "value": "1"
        },
        {
            "name": "radio",
            "value": "radio 2"
        },
        {
            "name": "yes",
            "value": "no"
        },
        {
            "name": "date",
            "value": "2015-10-23"
        },
        {
            "name": "select-deopdown",
            "value": ""
        },
        {
            "name": "true",
            "value": "false"
        },
        {
            "name": "number",
            "value": "55"
        }
    ]
  }
]

I want to separte value form ques array.now 'answer' return null

  while ($fetch = mysql_fetch_array($query1)) {
   $content = $fetch['CONTENT_VALUES'];
  // print_r($content);
  $content_value= mb_convert_encoding($content ,"UTF-8");
    $datas = json_decode($content, true);
     foreach($datas->ques as $values)
     {
         echo $values->value . "\n";
          print_r($values);
     }
   $test[] = array('ques' =>  $datas ,'answer'=>$values);
}

foreach($datas->ques as $key=>$values)

Thamilhan
– Thamilhan

2015-10-23 13:27:36 +00:00
Commented Oct 23, 2015 at 13:27 — Thamilhan
– Thamilhan, Commented Oct 23, 2015 at 13:27

Machavity · Accepted Answer · 2015-10-23 13:40:27Z

2

You're using json_decode($content, true); (consult the manual) so that means you're getting an array back, not an object. Either remove the true or treat it as an associative array

foreach($datas[0]['ques'] as $values)

edited Oct 23, 2015 at 13:40

answered Oct 23, 2015 at 13:30

Machavity♦

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2 Comments

user3386779 Over a year ago

tried both suggestion given by you sir.still return null alue

Machavity Over a year ago

Tricky. There's an array wrapping the whole thing. So regardless you have to reference element 0

Nere · Accepted Answer · 2015-10-23 13:53:18Z

1

Modify your code to be like this:

 while ($fetch = mysql_fetch_array($query1)) {
 $content = $fetch['CONTENT_VALUES'];
  $content_value= mb_convert_encoding($content ,"UTF-8");
    $datas = json_decode($content); //To return as Object
    foreach($array[0]->ques as $values):
        echo $values->name.'<br/>'; //For example
    endforeach;

}

edited Oct 23, 2015 at 13:53

answered Oct 23, 2015 at 13:29

Nere

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1 Comment

Nere Over a year ago

@user3386779 try again

davidkonrad · Accepted Answer · 2015-10-23 16:31:37Z

Perhaps your real problem is, that you never assign anything to $test[] in the loop?

Anyway - you are mixing object and arrays. As mentioned above, remove the true param from json_decode. The below works for me (hopefully I have understood what the goal is) :

//test load of the JSON
$content = file_get_contents('test.json');

$test = array();
$datas = json_decode($content);
foreach($datas[0]->ques as $item) {
    $test[] = array('ques' => $item->name, 'answer' => $item->value);
}

then

echo '<pre>';
print_r($test);
echo '<pre>';

outputs

Array
(
    [0] => Array
        (
            [ques] => comment
            [answer] => comment me for the reason
        )

    [1] => Array
        (
            [ques] => check-box[]
            [answer] => 1
        )

    [2] => Array
        (
            [ques] => radio
            [answer] => radio 2
        )

    [3] => Array
        (
            [ques] => yes
            [answer] => no
        )

    [4] => Array
        (
            [ques] => date
            [answer] => 2015-10-23
        )

    [5] => Array
        (
            [ques] => select-deopdown
            [answer] => 
        )

    [6] => Array
        (
            [ques] => true
            [answer] => false
        )

    [7] => Array
        (
            [ques] => number
            [answer] => 55
        )

)

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