PHP Array JSON to Javascript [duplicate]

Question

in php

<?php
    $arr = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
    echo json_encode($arr); // {"a":1,"b":2,"c":3,"d":4,"e":5}
?>

in javascript,

$.getJSON('drivetracker2.php', function(data) {
    console.log(data);
});

I am trying to access the php array which was sent via json to javascript.
but it says data is undefined.
anyone know why and how to fix this problem?

What the result is if you access drivetracker2.php in browser? — pktangyue
– pktangyue, Commented Mar 19, 2013 at 9:13
The code you posted looks good to me. Are you trying to access data anywhere else? — Felix Kling
– Felix Kling, Commented Mar 19, 2013 at 9:15
If you're using a modern browser such as Chrome/Firefox, you should be inspecting the request with your development tools. This will allow you to determine whether the request is sending/receiving correctly. — juco
– juco, Commented Mar 19, 2013 at 9:17

Kathiravan · Accepted Answer · 2013-03-19 09:12:52Z

1

Try this

 $.post('drivetracker2.php', function(data) {
  console.log(data);
 },'json');

answered Mar 19, 2013 at 9:12

Kathiravan

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4 Comments

Felix Kling Over a year ago

Why should this make a difference? Please explain.

Loupax Over a year ago

You need to specify in what format the response is going to be sent. Here he is saying Jquery that "the response I'm waiting for, is a JSON string", so it will be parsed to a JSON object automatically

Felix Kling Over a year ago

@Loupax: Was this directed at me? $.getJSON also tells jQuery to treat the response as JSON. There is no difference to the OP's code, only that it is POST instead of GET.

Loupax Over a year ago

I didn't see the $.getJSON part. In that case there is indeed no difference other than the type of the HTTP request :/

karmafunk · Accepted Answer · 2013-03-19 09:17:10Z

1

Add this just before you echo the json.

header('Content-Type: application/json');

answered Mar 19, 2013 at 9:17

karmafunk

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