Cant get values of checkboxes in codeigniter

Im trying to insert multiple checkboxes but cant get their values in codeigniter 2

this is my code in View

   <!-- Multiple Checkboxes (inline) -->
                    <div class="form-group">
                      <div class="col-md-4">
                        <label class="checkbox-inline" for="checkboxes-0">
                          <input type="checkbox" name="checkboxes[]" id="checkboxes-0" value="22">
                          Пентхаус
                        </label>
                          <br>
                    <!-- Text input-->
                    <div class="form-group">
                      <div class="col-md-8">
                      <input id="cena" name="cena[]" type="text" placeholder="Въведи цена" class="form-control input-md">

                      </div>
                    </div>

                        <label class="checkbox-inline" for="checkboxes-1">
                          <input type="checkbox" name="checkboxes[]" id="checkboxes-1" value="21">
                          Гараж/Паркомясто
                        </label>
                    <br>
                                            <!-- Text input-->
                    <div class="form-group">
                      <div class="col-md-8">
                      <input id="cena" name="cena[]" type="text" placeholder="Въведи цена" class="form-control input-md">

                      </div>
                    </div>

This is my Model:

    public function InsertCheckbox() {

           $property_typesRequest = $this->input->post('checkboxes');
            foreach($property_typesRequest as $value){
            $this->db->insert_batch('property_type_details', $property_typesRequest);

            }

}

in Controller i just use this:

        $this->estate_m->InsertCheckbox();

And this going insert 0 in database, when i var_dump $property_typesRequest theres shows bool(false). I cant get values of checkboxes...