Convert ugly hungarian utf-8 to a better one

convert.php

<?php
  $file = file("sql.sql");
  $file = join("", $file);
  $file = html_entity_decode($file);
  $search  =
    array('é', 'ő', 'ü', 'ű', 'ó', 'ö', 'á', 'í', '©', 'Ú', 'ú', 'É');
  $replace =
    array('é' , 'ő' , 'ü' , 'ű' , 'ó' , 'ö' , 'á' , 'í', '©' , 'Ú' , 'ú' , 'É');
  $file = str_replace($search, $replace, $file);
  echo $file;