Select2 With Pagination Using CodeIgniter

<?php
    //http://embed.plnkr.co/db8SXs/preview
    include_once ("connect.php");
    $searchTerm = (isset($_REQUEST['searchTerm']))?$_REQUEST['searchTerm']:'';
    $page = (isset($_REQUEST['page']))?$_REQUEST['page']:'';
    $country_id = (isset($_POST['country_id']))?$_POST['country_id']:'';

    $resultCount = 10;
    $end = ($page - 1) * $resultCount;
    $start = $end + $resultCount;

    $sState = "SELECT * FROM tbl_state_master WHERE country_id = ".$country_id." AND name LIKE '%".$searchTerm."%' ORDER BY name ASC LIMIT ".$end.",".$start."";

    $sResult = mysqli_query($conn, $sState);
    $count = mysqli_num_rows($sResult);
    $json = array();

    foreach ($sResult as $row) {
        $json[] = array('id' => $row['id'], 'text' => $row['name'], 'total_count'=> $count);
    }

    if (empty($json)){
        $empty[] = ['id'=>'', 'text'=>'', 'total_count'=>''];
        echo json_encode($empty);
    }else{
        echo json_encode($json);
    }
?>


<script type="text/javascript">

                //Select2 jQuery
                $("#state_id").select2("trigger", "select", {
                    data: { id: select_id}
                });


                $("#state_id").select2({
                    ajax: {
                        url: 'json_state_search.php',
                        type: "post",
                        dataType: 'json',
                        delay:250,
                        data: function (params) {
                            return {
                                searchTerm: params.term || "",
                                page: params.page ||1,
                                country_id: $("#country_id").val()
                            }
                        },
                        processResults: function (data, params) {
                        // Transforms the top-level key of the response object from 'items' to 'results'
                        page = params.page || 1;
                          return {
                            results: $.map(data, function (item) { return {id: item.id, text: item.text}}),
                            pagination: {
                                more: (page * 10) <= data[0].total_count
                            }
                          };
                        },
                        cache:false,
                    }
                });
</script>