<?php 

class Test_encoding extends MY_Controller {
   function __construct() {
      parent::__construct();
   }
   function index() {
      $input_name=" ANDREAS ALLAN  HANDOYO";
      $result = $this->strip_unicode($input_name);
      echo "strip_unicode => old : $input_name\nnew : $result\n";
      $result = $this->strip_unicodev2($input_name);
      echo "strip_unicodev2 => old : $input_name\nnew : $result\n";
   }

   function strip_unicode($inp) {
       $result = mb_convert_encoding ($inp, 'US-ASCII', 'UTF-8');
       $result = str_replace("?"," ",$result);
       return $result;
   }
   function strip_unicodev2($inp) {
       $result = mb_convert_encoding ($inp, 'US-ASCII', 'UTF-8');
       return $result;
   }
}