$datas = mysqli_query($con, "SELECT * FROM people order by name");
        //mysqli_fetch_array($datas);
        //Add all records to an array
        $recdatas = array();
        while($row = mysqli_fetch_array($datas))
        {
            $S = '<a class="btn btn-sm btn-primary" title="Edit" ><i class="glyphicon glyphicon-pencil"></i> Edit</a>';

            $recdatas[] = [
                "PersonID" => $row['PersonID'],
                "Name" => $row['Name'],
                "Age" => $row['Age'],
                "RecordDate" => $row['RecordDate'],
                "DT_RowId" => "ID_".$row['PersonID'],
                "Action" => $S
            ];
          }
//print_r($recdatas);
$requestData= $_REQUEST;
$totalData = mysqli_num_rows($datas);
$totalFiltered = mysqli_num_rows($datas);
$json_data = array(
                "draw"            => intval( $requestData['draw'] ),   // for every request/draw by clientside , they send a number as a parameter, when they recieve a response/data they first check the draw number, so we are sending same number in draw.
                "recordsTotal"    => intval( $totalData ),  // total number of records
                "recordsFiltered" => intval( $totalFiltered ), // total number of records after searching, if there is no searching then totalFiltered = totalData
                "data"            => $recdatas   // total data array
                );

echo json_encode($json_data, JSON_UNESCAPED_UNICODE);  // send data as json forma

{"draw":1,"recordsTotal":9,"recordsFiltered":9,"data":[{"PersonID":"4","Name":"awgawgaw","Age":"65","RecordDate":"2017-05-16","DT_RowId":"ID_4","Action":"<a class=\"btn btn-sm btn-primary\" title=\"Edit\" ><i class=\"glyphicon glyphicon-pencil\"><\/i> Edit<\/a>"}]