how to parse an array Json with Javascript?

Question

Possible Duplicate:
I have a nested data structure / JSON, how can I access a specific value?

I recived data by ajax

<?
 $locations[] = array(
'Name'=>$name,
'Latitude'=>$lat,
'Longitude'=>$long};
print_r(json_encode($locations));
?>

Here I have error, becasu it doesn't show anything when I tried with alert(data) and it work and show the array json that is below

success:function(data) {
  var dat =$.parseJSON(data);
   $("#pru").html(dat.Name); //here it doesn't show anything if I put alert(data) it show me all the array json
}

the array json content, the next array:

[{"Name":"Jayme jayden","Latitude":"36.712005","Longitude":"-4.43825"},
{"Name":"Jhonny","Latitude":"36.728744","Longitude":"-4.443822"},
{"Name":"Jessica Lynn","Latitude":"36.7418","Longitude":"-4.4333 "}]

`$("#pru").html(resp[0].Name);` Edit: + read Joseph's answer — Peter, Jan 28 '13 at 01:12
@Peter Szymkowski I already changed $("#pru").html(dat[0].Name) and it doesn't work — Kakitori, Jan 28 '13 at 01:14
@FelixKling - How? Unless the server is sending valid JSON headers (which I doubt) or the data type is set to JSON (which the OP has not shown), how would it already be parsed? — Joseph Silber, Jan 28 '13 at 01:17
@Joseph: No I mean it looks like the OP already parsed the JSON (`$.parseJSON`), so the problem is not about parsing it but rather how to properly access the result. That's of course under the assumption that the JSON was valid. — Felix Kling, Jan 28 '13 at 01:18

score 3 · Accepted Answer · answered Jan 28 '13 at 01:13

3

You shouldn't use print_r to send JSON. Just do a regular echo:

$locations = array(
    'Name' => $name,
    'Latitude' => $lat,
    'Longitude' => $long
);

echo json_encode($locations);

You also have a syntax error in your code (the closing brace for the array), and I think you're unintentionally creating a multi-dimensional array. Use the code above, and it should work.

answered Jan 28 '13 at 01:13

Joseph Silber

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Technically right but it does not make a difference, since json_encode always returns a string and print_r on strings just behaves like print/echo. – Fabian Schmengler Jan 28 '13 at 01:14
@fab - True, which is why I also point out 2 other problems in the code. – Joseph Silber Jan 28 '13 at 01:15
1

Yes, after you edited it, the answer is great – Fabian Schmengler Jan 28 '13 at 01:18

how to parse an array Json with Javascript?

1 Answers1