// print_r useful for php debugging/development
      print_r($_POST);





      // access an individual array member in ASSOCIATIVE ARRAY
      //    key names come from THE FORM you made in html
      echo  "\n<h1>   {$_POST['creditCardNumber'] }   </h1> ";



      // the ol' foreach
      foreach ($_POST as $key => $value)
        echo "\n\n   $key is $value";
   

Array
(
)