functions/decode/iso_8859_1.php

   1 <?php
   2
   3 /**
   4  * decode/iso8859-1.php
   5  *
   6  * This file contains iso-8859-1 decoding function that is needed to read
   7  * iso-8859-1 encoded mails in non-iso-8859-1 locale.
   8  *
   9  * @copyright 2003-2016 The SquirrelMail Project Team
  10  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  11  * @version $Id$
  12  * @package squirrelmail
  13  * @subpackage decode
  14  */
  15
  16 /**
  17  * Decode iso8859-1 string
  18  * @param string $string Encoded string
  19  * @return string $string Decoded string
  20  */
  21 function charset_decode_iso_8859_1 ($string) {
  22     // don't do decoding when there are no 8bit symbols
  23     if (! sq_is8bit($string,'iso-8859-1'))
  24         return $string;
  25
  26     $string = preg_replace_callback("/([\201-\237])/",
  27     create_function ('$matches', 'return \'&#\' . ord($matches[1]) . \';\';'),
  28     $string);
  29
  30     /* I don't want to use 0xA0 (\240) in any ranges. RH73 may dislike it */
  31     $string = str_replace("\240", '&#160;', $string);
  32
  33     $string = preg_replace_callback("/([\241-\377])/",
  34     create_function ('$matches', 'return \'&#\' . ord($matches[1]) . \';\';'),
  35     $string);
  36     return $string;
  37 }