Codeigniter Controller cannot get the input post values - forms

Question

Hy, I have problem with codeigniter. My controller can't get the values from my view. Here is the code
Controller
public function konfirmasi_pembayaran() {
$data['data_penumpang_bayi'] = $this->input->post("data_penumpang_bayi");
if($data['data_penumpang_bayi'] > 0){
for ($i = 1; $i <= $data['data_penumpang_bayi']; $i++) {
$data['ortu_bayi'. $i] = $this->input->post("ortu_bayi". $i);
$data['nationality_bayi'. $i] = $this->input->post("nationalitybayi". $i);
$data['name_bayi' . $i] = $this->input->post("namebayi" . $i);
$data['titel_bayi' . $i] = $this->input->post("titelbayi" . $i);
$data['lastname_bayi' . $i] = $this->input->post("lastnamebayi" . $i);
$data['date_birth_bayi' . $i] = $this->input->post("datebirthbayi" . $i);
}
}
$this->load->view("flight/konfirmasi_pembayaran_page", $data);
}
View
<div class="control-group">
<label class="control-label">Titel<span class="required">*</span></label>
<div class="controls">
<select class="span6 m-wrap" name="titelbayi<?php echo $i ?>">
<option value="">Pilih Titel...</option>
<?php foreach ($json_data->required->titlei1->resource as $value) {
?>
<option value="<?php echo $value->id ?>"><?php echo $value->name ?></option>
<?php } ?>
</select>
</div>
</div>
<div class="control-group">
<label class="control-label">Nama Depan<span class="required">*</span></label>
<div class="controls">
<input type="text" value="" name="namebayi<?php echo $i ?>" data-required="1" class="span6 m-wrap"/>
<input type="hidden" name="data_penumpang_bayi" value="<?php echo $data_penumpang_bayi ?>"/>
</div>
</div>
<div class="control-group">
<label class="control-label">Nama Belakang<span class="required">*</span></label>
<div class="controls">
<input type="text" value="" name="lastnamebayi<?php echo $i ?>" data-required="1" class="span6 m-wrap"/>
</div>
</div>
<div class="control-group">
<label class="control-label">Tanggal Lahir<span class="required">*</span></label>
<div class="controls">
<input id="date_birth" placeholder="(ex.1970-10-10)" data-date-format="yyyy-mm-dd" name="datebirthbayi<?php echo $i ?>" class="m-wrap m-ctrl-medium date-picker" size="16" type="text" value="" />
</div>
</div>
<div class="control-group">
<label class="control-label">Kewarganegaraan<span class="required">*</span></label>
<div class="controls">
<select class="span6 chosen-with-diselect" name="nationalitybayi<?php echo $i ?>">
<option value="">Pilih Kewarganegaraan...</option>
<?php
$contents = file_get_contents('https://api.master18.tiket.com/general_api/listCountry?output=json&token=' . $token . '');
$data = json_decode($contents);
foreach ($data->listCountry as $key) {
?>
<option <?php if ($key->country_id == "id") { ?> selected="selected" <?php } ?> value="<?php echo $key->country_id; ?>"><?php echo $key->country_id; ?>, <?php echo $key->country_name; ?></option>
<?php
}
?>
</select>
</div>
</div>
The controller code cannot get the values from previous view. What's wrong with my code ?
Any answer will be really appreciated. Sorry for my bad english
Thank you.

Answer 1

In your html code example, there is no form and no submit button. How are you posting ?
the concept in codeigniter (or any other MVC frameworks) for filling in a form, submit the form and get a resultpage is:
create a view page with form and submit button.
The submit button's action calls your controller function
in the controller function you can do something with your POST data
send back $data with $this->load->view('your_view',$data')
you can find a tutorial here (skip the validation part): http://ellislab.com/codeigniter/user-guide/libraries/form_validation.html#tutorial
hope that helps!