get dynamic value inside foreach loop - php

Question

I'm using Codeigniter to write a shopping cart system. Tried to research but unable to figure out the way, I want to get the dynamic value "Green/Red/Yellow" in dynamic drop-down list like below:
Below is my code:
Model:
class Products_model extends CI_Model {
public function get_all() {
$result = $this->db->get('products');
foreach ($result->result() as $value) {
if ($value->option_values){
$value->option_values = explode(',', $value->option_values);
}
} return $result;
}
Controller:
class Shopping_cart extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->helper('html');
$this->load->model('products_model');
$this->load->library('cart');
}
public function index() {
$data['records'] = $this->products_model->get_all();
$data['main'] = 'shopping_cart_view';
$this->load->view('templates/shopping_cart', $data);
}
public function add() {
//If the product is not listed, perform insert
$data = array(
'id' => $this->input->post('id'),
'qty' => $this->input->post('quantity'),
'price' => $this->products_model->get_by_id($this->input->post('id'))->price,
'name' => $this->products_model->get_by_id($this->input->post('id'))->name,
'option' => '' //I want to get the dynamic values in dropdown list and put in to this option array.
);
$this->cart->insert($data);
redirect('shopping_cart');
}
View:
<?php
//List products
foreach ($records->result() as $value) :
echo form_open('shopping_cart/add');
?>
<?php //List the dropdown if value has option i.e color/size/type
if ($value->option_name)
:?>
<?php echo form_label($value->option_name, $value->id)?>
<?php echo form_dropdown(
$value->option_name,
$value->option_values
)?>
<?php endif;?>
<?php
echo form_hidden('id', $value->id);
echo form_submit('submit', 'Add to cart');
?>
<?php echo form_close();?>
<?php endforeach; ?>
And below is $this->cart->contents() when i submitted "add to cart":
Array ( [c4ca4238a0b923820dcc509a6f75849b] => Array ( [rowid] => c4ca4238a0b923820dcc509a6f75849b [id] => 1 [qty] => 1 [price] => 100 [name] => T-shirt [option] => [subtotal] => 100 ) )
I am running out of ideas try to get the dynamic value inside dynamic loop. Any advises are really appreciated.
Thanks a lots!

Answer 1

I would create the array of option_values in the controller (so bring option_values as string via Model and declare an array in the controller that will contain the explode(',', option_values) ).
Then use this array as source for 'option'.
Hope this helps.

Answer 2

The problem is in this part:
foreach ($result->result() as $value) {
if ($value->option_values){
$value->option_values = explode(',', $value->option_values);
}
}
return $result;
$value is only valid, in the way you have done this, during the method. It's not saved to the $result. You would need to do something along these lines:
$new_result = array ();
foreach ($result->result() as $value) {
if ($value->option_values){
$value->option_values = explode(',', $value->option_values);
}
$new_result[] = $value;
}
return $new_result;
When you are going through a foreach loop like that, you disconnect the $value form $result.
There are other ways to do this, but I think that is the clearest and most understandable.