Get Array Ajax Response Undefined

Question

I'm trying to send an array to JS, but I can't get the array I want.

This is my Controller PHP code:

foreach ($test as $k => $subArray) {
   foreach ($subArray as $id=>$value) {
      array_key_exists( $id, $sumArray ) ? $sumArray[$id] += $value : $sumArray[$id] = $value;
   }
}
array_push($t, $sumArray);
$data['res'] = array_values($t[0]);
array_push($temp, $data);
echo json_encode($temp);

The output was:

[{"res":[484603732,350203732,133347732,203347732]}]

This is my View code:

$.get('/index.php/dashboard/linechart', function(data){
     console.log(data.res);
});

My expected output on console.log was:

[484603732,350203732,133347732,203347732]

but something goes wrong, the output went undefined.

So far I've tried with JSON.parse(data.res);

But still got undefined.

Anyone could save my day? I'm really stuck with this.

You've to parse data to an object, your server sends a JSON string. Notice also, that res is a member of the array, hence data[0].res is what you need. — Teemu
– Teemu, Commented Sep 6, 2019 at 4:13
Could you please show me how to do it? Coz I've tried all of the methods I know. But still, it goes error. — baimWonk
– baimWonk, Commented Sep 6, 2019 at 4:16
This should not be extremely hard, take some time, examine carefully what you have written and what kind of results you're having, and re-read my comment, practically the code you need is in that comment. — Teemu
– Teemu, Commented Sep 6, 2019 at 4:19
What about response = JSON.parse(JSON.stringify(data)); alert(response); for(var i in response){ alert(response[i].res); } — Hariharan V.
– Hariharan V., Commented Sep 6, 2019 at 4:27
let parsedData = JSON.parse(data); let res = parsedData[0].res; should do. Server always responses with a string, live objects are not going through the http(s). — Teemu
– Teemu, Commented Sep 6, 2019 at 4:27

Dylan · Accepted Answer · 2019-09-06 04:30:54Z

1

As per your output:

[{"res":[484603732,350203732,133347732,203347732]}]

The issue is with the response. You're returning an array and not an object. So your ajax should be doing something like this:

$.get('/index.php/dashboard/linechart', function(data){
 actualData = JSON.parse(data); 
 console.log(actualData[0].res);
});

answered Sep 6, 2019 at 4:30

Dylan

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3 Comments

baimWonk Over a year ago

Uncaught SyntaxError: Unexpected end of JSON input

Dylan Over a year ago

Hi, can you just log data and show the output.

baimWonk Over a year ago

If I'm trying to console.log(data), the output was empty.

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