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Bug #20934 htmlspecialchars returns latin1 from UTF-8
Submitted: 2002-12-11 06:58 UTC Modified: 2002-12-12 07:38 UTC
From: renato at cria dot org dot br Assigned:
Status: Closed Package: Strings related
PHP Version: 4CVS-2002-12-11 (dev) OS: Red hat linux 8.0
Private report: No CVE-ID: None
 [2002-12-11 06:58 UTC] renato at cria dot org dot br
I used the script bellow for testing (calling it from MS Internet Explorer to directly see the xml output).

Calling it without parameters one should see a simple xml document showing a string in latin1.

Calling it with "?charset=utf8", the script correctly converts the string from latin1 to UTF-8 but after using "htmlspecialchars" it goes back to latin1, and the xml becomes invalid. (put a comment on the "htmlspecialchars" line after the character conversion and the xml will show up in UTF-8 without problem).


$string = "Hello from S?o Paulo";

$charset = isset($_GET["charset"]) ? $_GET["charset"] : "latin1";

if ($charset == "utf8")
  $charset_code = "UTF-8";
  $show_string = mb_convert_encoding($string, "UTF-8", "ISO-8859-1"); 
  $show_string = htmlspecialchars($show_string, ENT_COMPAT, "UTF-8");
  $charset_code = "ISO-8859-1";

  $show_string = htmlspecialchars($string);

header ("Content-type: text/xml");

echo "<?xml version='1.0' encoding='$charset_code' ?>\n";


<?php print($show_string); ?>



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 [2002-12-12 07:10 UTC]
Thanks for your effort again.
Verified this behaviour.

 [2002-12-12 07:19 UTC]
Is this problem also in the PHP 4.3.0RC3?
If so, this should be resolved before release.
 [2002-12-12 07:38 UTC]
This bug has been fixed in CVS.

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Thank you for the report, and for helping us make PHP better.

It's fortunate that I managed to fix this before the release.
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