PHP | <?php // $Id: zipcode.hu.inc, - Palocz Pal - m260b190c

<?php
// $Id: zipcode.hu.inc,v 1.9 2009/08/26 16:32:02 thierrygd Exp $

// Copyright 2008 Thierry GUEGAN http://www.arvoriad.com

/**
 * @file
 * CCK Field for Hungarian zipcodes.
 */

/**
 * Verification for Hungarian zipcodes.
 *
 * @param string $text
 * @return boolean Returns boolean FALSE if the zipcode is not valid.
 * On success, returns a string containting the zipcode with some formatting.
 */
function valid_hu_zipcode($zipcodestring) {
  $zipcodestring = trim($zipcodestring);

  if (!preg_match("/(^\d{4}$)/",$zipcodestring)) {
        return FALSE;
  }
  //right now just do a quick check ==> has to be improved
  //need to check more precisely by doing a query on a zipcode table, ...
  else
  {
        return TRUE;
  }
}

/**
 * Formatting for zipcode.
 *
 * @param string $zipcodestring
 * @return string Returns a string containting the zipcode with some formatting.
 */
function format_hu_zipcode($zipcodestring) {

  $zipcodestring = trim($zipcodestring);
  //do some formatting
  return $zipcodestring;
}