How could I loop through this json object in php file?

Question

I have converted an xml object returned from a php function into json format to send it to js file like.

function searchResults($q) { ...
    $xml = simplexml_load_string($result);
    return json_encode($xml); }

I receive/use it in js like

  var msg_top = "<"+"?php echo searchResults('windows');"+"?"+">";

Then I receive it back in php & decoded.

      $json = $_POST['msg_top'];
      $msg = json_decode($json);

Now how do I loop through it to get all values of its certain properties that I could have get from xml object(which I converted into json). This is how I loop over xml object to get all values of its certain properties:

   foreach ($xml->entry as $status) {
   echo $status->author->name.''.$status->content);
   }

How do I get all those values from decoded json object $msg?
EDITED I tried in same HTML where I am using js to receive & POST php search function data via ajax, I tried following code to loop through json in php. But it did not show anything.

$obj = searchResults(testword);//serach function returns json encoded data
$obj = json_decode($obj, true);
$count = count($obj);  
for($i=0;$i<$count;$i++)
{
echo $obj[$i][content];}// using xml for it, I get ouput like foreach ($xml3->entry as 
                       // $status) {status->content}

are you actually trying to execute php from js? nice idea, but will not work... — joni
– joni, Commented Nov 23, 2010 at 9:50
@joni, thanX for the reply. May be something in my post confuses u. Not really, I just need to access some php results in js, use those there & send back again to php server for further use. — XCeptable
– XCeptable, Commented Nov 23, 2010 at 9:59
but how does "<"+"?php echo searchResults('windows');"+"?"+">" get executed on PHP runtime?? — joni
– joni, Commented Nov 23, 2010 at 10:21
Is it not like that whenever this function is called, it will return results? As my need is to get results in js that this php function returns. So I am calling it using php tags in js — XCeptable
– XCeptable, Commented Nov 23, 2010 at 10:52
you cannot call a php func from js, except using ajax. And please use a @joni if you answer to me, so I get notified =) — joni
– joni, Commented Nov 24, 2010 at 9:45

tamasd · Accepted Answer · 2010-11-23 09:52:00Z

11

By default, json_decode returns an stdClass. stdClass-es can be used the same way as associative arrays with foreach.

Alternatively, you can ask json_decode to return an associative array:

$array = json_decode($_POST['foo'], TRUE);

answered Nov 23, 2010 at 9:52

tamasd

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Starx · Accepted Answer · 2010-11-23 09:53:11Z

0

I think you have to use $msg for the FOR LOOP as it is the array.

Try to see what it hold using this

echo "<pre>".print_r($msg)."</pre";
//And if you see the correct array structure
foreach($msg as $key=>$value) {
  //do your things
}

answered Nov 23, 2010 at 9:53

Starx

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1 Comment

Starx Over a year ago

I am just saying this as $status is used in FOR LOOP

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