Issue displaying array in Codeigniter - Ajax

Question

I am trying to implement AJAX call method into my website using codeigniter, so when the user clicks on a button it will update them live.

The click button works and displays all of the JSON data but the issue is when i try and display a specific array it does not print it out it shows single values for example "h"

I want to be able to print specific arrays for example the array that contains the string "Jamie"

Any help would be appreciated

Controller

public function insertJSON()
    {
        $this->load->model("values");
        $queryresults = $this->values->getDb();

        $arr = array();
        $arr2 = array();


        foreach($queryresults as $row)
        {
            $arr[] =  $row->post;
            $arr2[] = $row->img;
        }

                    $data = array();
                    $data[] = $arr;
                    $data[] = $arr2;

                    echo json_encode($data);
    }

View

<script type='text/javascript' language='javascript'>
  $('#getdata').click(function () {
    $.ajax({
      url: '<?php echo base_url().'index.php/welcome/insertJSON';?>',
      async: false,
      type: "POST",
      success: function(data) {
        $('#result_table').html(data[1]);
      }
    })
  });
</script>

Vardump of the variable

array(2) {
  [0]=>
  array(4) {
    [0]=>
    string(5) "Jamie"
    [1]=>
    string(4) "Mark"
    [2]=>
    string(5) "James"
    [3]=>
    string(5) "hello"
}
[1]=>
  array(4) {
    [0]=>
    string(16) "[email protected]"
    [1]=>
    string(15) "[email protected]"
    [2]=>
    string(15) "[email protected]"
    [3]=>
    string(16) "[email protected]"
}
}

data[1] maps to the second array you had added to the $data array. You would need to do data[0][0] to get jamie and data[1][0] to get [email protected] — Gavin
– Gavin, Commented Mar 18, 2013 at 13:35
i thought i would have to try 'data[0][0]' to get jamie but instead it displays "<", its really confusing me - i think this suggests that im not grabbing the JSON properly — Hashey100
– Hashey100, Commented Mar 18, 2013 at 13:36

bipen · Accepted Answer · 2013-03-18 13:43:59Z

1

if you want display a specific array then use [] operator

$('#result_table').html(data[0][0]); //will print Jamie
$('#result_table').html(data[0][3]); //will print hello
$('#result_table').html(data[1][1]); //will print [email protected]

answered Mar 18, 2013 at 13:43

bipen

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Comments

jonners99 · Accepted Answer · 2013-03-18 15:17:23Z

1

Try running this on your returned data:

data = JSON.parse(data);

So:

success: function(data) {
    data = JSON.parse(data);
    $('#result_table').html(data[1]);
}

answered Mar 18, 2013 at 15:17

jonners99

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Comments

iamcrypticcoder · Accepted Answer · 2013-03-21 02:29:11Z

0

Some Info: To get jSON correctly you should set output TYPE before putting output like this:

$this->output->set_content_type('application/json');

Then set output like this:

$this->output->set_output(json_encode($data));

However According to your var dump $data[1] will show Object[] and all the above answer is correct. :)

answered Mar 21, 2013 at 2:29

iamcrypticcoder

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