Json eval not able to parse data

Question

I have a php program where I just test some sample data. I am getting error as missing ] after element list. How can I read this?

$dataDetailsList = array();
array_push($dataDetailsList, array('a' =>'1','b' =>'2','c' =>'3','d' =>'4','e' =>'5'));
echo json_encode(array("DataDetailsList"=>$dataDetailsList));

Then in my jQuery processor I am doing like this.

function requestData() {
    $.ajax({
        url: 'live-server-data.php',
        success: function(data) {
            //alert(json);
            var jsonData = eval(" (" + data + ") ");
        },
        cache: false
    });

score 4 · Answer 1 · answered May 24 '12 at 16:36

function requestData() {
    $.ajax({
        url: 'live-server-data.php',
        success: function(data) {
            //alert(json);
            var jsonData = data;

        },
        cache: false,
        dataType: 'json' //data type that it will return 
    });
}

score 3 · Accepted Answer · edited May 23 '17 at 12:20

3

Don't use eval is evil. Instead of this use:

JSON.parse(data); // not supported in IE7 and below

I think you need to try

dataType: 'json'

That is,

$.ajax({
    url: 'live-server-data.php',
    dataType: 'json',
    success: function(data) {
        var jsonData = data;
        console.log(jsonData);
        $.each(jsonData.DataDetailsList, function(key, val) {
             var key = Object.keys(val)[0],
                 value = val[key];
             console.log(key); // output: a, b, c ...
             console.log(value); // output: 1, 2, 3,...
            // alternative
            for(var key in val) {
                console.log(key);
                console.log(val[key]);
            }
        });
    },
    cache: false
})

edited May 23 '17 at 12:20

Community

1
1

answered May 24 '12 at 16:34

thecodeparadox

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Ok it works now how can I further process the data now? for(i=0 ;i – user837306 May 24 '12 at 16:51
@user837306 that means to want to get `a`, `b` etc – thecodeparadox May 24 '12 at 16:55
JSON.parse is not supported in IE7. All other browsers current and previous releases support this... if IE7 is a concern you will have to shim it. just an FYI. +1 – rlemon May 24 '12 at 16:59
Yes I want to get what is a,b etc. The a,b,c can also be dynamic too. – user837306 May 24 '12 at 17:03
I add this alert(key); after the console it give me 0? – user837306 May 24 '12 at 17:12
Ok it works but only first data as a 1 I know cause u put [0] how to get for all the other key and values. – user837306 May 24 '12 at 17:28
@user837306 check my update and if it doesn't work properly, then make a fiddle with the `data` object and provide it here – thecodeparadox May 24 '12 at 17:34
IT works perfectly. Let me do some more testing and then get back to you thank you very much for your help. So should I stick to this or go with json2? – user837306 May 24 '12 at 17:40
@user837306 Welcome stick with it – thecodeparadox May 24 '12 at 17:41

score 2 · Answer 3 · answered May 24 '12 at 16:36

You should just set the dataType to json and jQuery will do the trick for you..

$.ajax({
    url: 'live-server-data.php',
    dataType: 'json',  //Added dataType json
    success: function(data) {
        //Now data is a javascript object (JSON)
    },
    cache: false
});

Json eval not able to parse data

3 Answers3