php - Validating Dynamically generated field arrays in codeigniter -

i have form fields dynamically generated.

<table class="insideform">                             <tr>                                 <td>                                 <script>                                     $(document).ready(function() {                                         $('#addrange').click(function(){                                             var value = '<tr><td><input type="number" size="10" id="from" name="from[]" value=""></td>';                                                 value += '<td><input type="text" size="10" id="to" name="to[]" value=""></td>';                                                 value += '<td><input type="text" id="disprice" name="disprice[]" /></td>';                                                 value += '<td valign="middle" id="removerange">x</td>';                                                 value += '<td id="to_err" class="err"></td></tr>';                                              $('.discounttable').append(value);                                         });                                          $('body').on("click","#removerange",function(){                                             $(this).parent().remove();                                         });                                          $('#maxqty').change(function(){                                             var value = $('#maxqty').val() + " above";                                             $('#maxabove').text(value);                                         });                                      });                                 </script>                                     <table class="discounttable">                                         <tr>                                             <th>from</th>                                             <th>to</th>                                             <th>price</th>                                         </tr>                                         <tr>                                             <td colspan="2" align="right"><span id="maxabove">10 above</span></td>                                             <td><input type="text" name="maxaboveinput" id="maxaboveinput" /></td>                                             <td id="maxaboveinput_err" class="err"></td>                                         </tr>                                         <tr>                                             <td><input type="text" size="10" id="from" name="from[]" value=""></td>                                             <td><input type="text" size="10" id="to" name="to[]" value=""></td>                                             <td><input type="text" /></td>                                             <td valign="middle" id="removerange">x</td>                                             <td id="to_err" class="err"></td>                                         </tr>                                     </table> <input type="button" name="addrange" id="addrange" value="add row"/> 

i want validate to[], from[] fields in codeignitor, use ajax call validate form here code:

$('#submit').click(function(){         console.log($("#form").serialize());         $.ajax({                 url:'<?php echo base_url(); ?>index.php/placeorder/valids',                 type:'post',                 data:$("#form").serialize()                 }).done(function(data){                     $("#validations").html(data);}); 

i tried write code in controller:

$this->load->helper(array('form', 'url'));  $this->load->library('form_validation');  $this->form_validation->set_message('%s required', '*required');     $this->form_validation->set_rules('to[]', 'to field', 'required|xss_clean'); $this->form_validation->set_rules('from[]', 'from field', 'required|xss_clean');   $errors = array();   if ($this->form_validation->run() == false)     {         echo validation_errors();      } 

it doesnt validate fields... , validation_errors doesnt show thing tried parse json , echo json code... 'to' , 'from' shows empty in json. can help?

sample controller :

  public function sample_controller() {      if ($this->input->post()) {       $this->load->library('form_validation');       $this->form_validation->set_rules('from[]', 'from field', 'required|xss_clean');       if ($this->form_validation->run() == true) {         echo 'success';       } else {         echo validation_errors();       }     }     $this->load->view('sample_view');   } 

sample view :

<form method="post">   <input type="text" size="10" id="from" name="from[]" value="dino"/>   <input type="text" size="10" id="from" name="from[]" value="babu"/>   <input type="text" size="10" id="from" name="from[]" value="kannampuzha"/>   <input type="submit" value="go" /> </form> 

// output

1) if text box empty

the field field required. 

2) if text boxes filled

success