Remove prefix from keys of an associative array and use the prefix as the first level key of a grouped 2d array

Question

I have array from POST like this:

  '0,id_product' =>  '217' 
  '0,checked' =>  '217'
  '0,price_setup_original' =>  '1.00' 
  '1,price_setup_original' =>  '7.00' 
  '1,price_setup_res' =>  '7.00' 
  '1,price_monthly_original' => '50.00' 
  '2,price_setup_res' => '0.00' 
  '2,price_monthly_original' =>  '40.00' 
  '2,price_monthly_res' =>  '40.00'

i want to iterate it like this example, need help!

array = (
0 -> array(
      'id_product' =>  '217',
      'checked' =>  '217',
      'price_setup_original' =>  '1.00' 
     ),
1 -> array(
      'id_product' =>  '217',
      'checked' =>  '217',
      'price_setup_original' =>  '1.00' 
     ),
);

Answer 1

Try:

$formatted = array();

$post = array(
  '0,id_product' =>  '217', 
  '0,checked' =>  '217',
  '0,price_setup_original' =>  '1.00', 
  '1,price_setup_original' =>  '7.00',
  '1,price_setup_res' =>  '7.00', 
  '1,price_monthly_original' => '50.00', 
  '2,price_setup_res' => '0.00', 
  '2,price_monthly_original' =>  '40.00', 
  '2,price_monthly_res' =>  '40.00'
);

foreach($post as $keys => $val){
    list($key1, $key2) = explode(",", $keys);
    $formatted[$key1][$key2] = $val;
}

var_dump($formatted);

Codepad example.