Unable to convert PHP multidimensional array to Javascript array [closed]

Question

Closed. This question needs details or clarity. It is not currently accepting answers.

Want to improve this question? As written, this question is lacking some of the information it needs to be answered. If the author adds details in comments, consider editing them into the question. Once there's sufficient detail to answer, vote to reopen the question.

Closed 12 years ago.

Improve this question

I have php multidimensional array which is generated dynamically

Array
(
    [0] => Array
        (
            [cid] => 73
            [type] => 2
            [qrystr] => Qtest1
            [trck_no] => (570) 244-3738
            [trgt_no] => 1919674683063
            [webpage] => Array
            (
                [0] => Array
                    (
                        [wid] => 40
                        [page_url] => www.ctest2.com
                    )
                [1] => Array
                    (
                        [wid] => 41
                        [page_url] => www.ctest3.com
                    )
            )
    )
[1] => Array
    (
        [cid] => 75
        [type] => 3
        [qrystr] => Qtest6
        [trck_no] => 
        [trgt_no] => 
        [webpage] => Array
            (
                [0] => Array
                    (
                        [wid] => 42
                        [page_url] => www.test1.com
                    )
                [1] => Array
                    (
                        [wid] => 43
                        [page_url] => www.test1.com
                    )
            )
    )

)

and I want to convert it in Javascript. For that I have already encoded it using json_encode() in php and here is the output for the same :

[{"cid":"73","type":"2","qrystr":"Qtest1","trck_no":"(570) 244-3738","trgt_no":"1919674683063","webpage":[{"wid":"40","page_url":"www.ctest2.com"},{"wid":"41","page_url":"www.ctest3.com"}]},{"cid":"75","type":"3","qrystr":"Qtest6","trck_no":"","trgt_no":"","webpage":[{"wid":"42","page_url":"www.test1.com"},{"wid":"43","page_url":"www.test1.com"}]}]

In javascript whenever I parse this using JSON.parse() I get an error message (i.e. SyntaxError: JSON.parse: unexpected character).

Kindly suggest.

EDITED:

My php file is in separate server and where pogramatically I gather information from database based on "id" and store it in an array.

Here is my php code:

           foreach($campaigns as $campaign){

        if(($campaign->type == 2) || ($campaign->type == 3)){
            foreach($campaign->webpage as $webpage){

                $webpages[] = array(
                                 'wid'=>trim($webpage->id),
                                 'page_url'=>trim($webpage->page_url)
                            );

            }
        }else{
            $webpages = "";
        }

        $campaign_details[] = array(
                               'cid'=>trim($campaign->id),
                               'type'=>trim($campaign->type),
                               'qrystr'=>trim($campaign->qrystr),
                               'trck_no'=>trim($campaign->trcknmb->frnd_name),
                               'trgt_no'=>trim($campaign->trcknmb->trgtnmb->phone_no),
                               'webpage'=>$webpages
                            );
        unset($webpages);                   

    }

            $cdetails =  json_encode($campaign_details);
    echo $cdetails;

I make a cross domain request to get the array valu.

Here is my Javascript code to parse the json string:

           function handler(evtXHR)
           {
            if (invocation.readyState == 4)
              {
               if (invocation.status == 200)
                {
                  response = invocation.responseText;
                  var content = JSON.parse(response);
                  alert(content);
                }
               else
                {
                  alert("Invocation Errors Occured");
                }
              }
           }

I put an alert function here to check the output result.

Try running your output through jslint and see if there are any problems there? — Lee Avital
– Lee Avital, Commented Jul 9, 2013 at 7:28

MrCode · Accepted Answer · 2013-07-09 06:42:08Z

3

In Javascript, you don't need to parse it because it's a valid Javascript array as it is.

Simply:

var myData = <?php echo json_encode($data); ?>;

for(var i=0; i<myData.length; i++) {
    console.log( myData[i].cid );
    console.log( myData[i].type );
    console.log( myData[i].webpage[0].wid );
}

Most likely you're getting the error because there's a problem with quoting the JSON when you call JSON.parse.

answered Jul 9, 2013 at 6:42

MrCode

64.6k10 gold badges94 silver badges114 bronze badges

true, but might not be a bad idea to parse it in JS anyway. See this: stackoverflow.com/questions/6765106/…

David
– David

07/09/2013 06:42:55
Commented Jul 9, 2013 at 6:42
1

@David Array literal !== eval. If the value is properly JSON encoded, just treating it as a literal is fine.

deceze
– deceze ♦

07/09/2013 06:48:19
Commented Jul 9, 2013 at 6:48
@David there is no benefit to parsing it, and as deceze points out there are no security concerns with passing it this way.

MrCode
– MrCode

07/09/2013 06:50:41
Commented Jul 9, 2013 at 6:50
@deceze, I guess you're saying since all of these values are quoted. Supposing it's not all from one source but built the way the example on the link I sent is, then it's probably best no?

David
– David

07/09/2013 06:51:29
Commented Jul 9, 2013 at 6:51
2

@David If you run it through json_encode, it's guaranteed to only consist of harmless strings and numbers. There's no chance to inject anything. If you're not doing that properly, then all bets are off anyway and anyone could inject anything even into the literal itself, against which parsing doesn't protect.

deceze
– deceze ♦

07/09/2013 06:56:25
Commented Jul 9, 2013 at 6:56

| Show 1 more comment

David · Accepted Answer · 2013-07-09 06:41:52Z

0

You're not quoting the JSON as a string are you? Otherwise, that same json worked when I did a

JSON.parse('<your stuff>');

answered Jul 9, 2013 at 6:41

David

2,9902 gold badges24 silver badges31 bronze badges

Add a comment |

Paul Chen · Accepted Answer · 2013-07-09 06:42:34Z

0

Did you replace " to \"? Because I have no problem executing:

JSON.parse("[{\"cid\":\"73\",\"type\":\"2\",\"qrystr\":\"Qtest1\",\"trck_no\":\"(570) 244-3738\",\"trgt_no\":\"1919674683063\",\"webpage\":[{\"wid\":\"40\",\"page_url\":\"www.ctest2.com\"},{\"wid\":\"41\",\"page_url\":\"www.ctest3.com\"}]},{\"cid\":\"75\",\"type\":\"3\",\"qrystr\":\"Qtest6\",\"trck_no\":\"\",\"trgt_no\":\"\",\"webpage\":[{\"wid\":\"42\",\"page_url\":\"www.test1.com\"},{\"wid\":\"43\",\"page_url\":\"www.test1.com\"}]}]")

answered Jul 9, 2013 at 6:42

Paul Chen

1,8901 gold badge16 silver badges29 bronze badges

1

but the value could have single quotes say {"a":"it's good"}

Paul Chen
– Paul Chen

07/09/2013 06:50:54
Commented Jul 9, 2013 at 6:50

Add a comment |

Collectives™ on Stack Overflow

Unable to convert PHP multidimensional array to Javascript array [closed]

3 Answers 3

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Linked

Related