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meklarian/UCS2HexToUTF8.php

Created January 5, 2010 17:23
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Reverse mapping of prior gist, Hex-string representation of UCS-2 into UTF-8 native string, with verified Arabic support.
Raw
UCS2HexToUTF8.php
<?php
// REF: Source code corresponding to http://stackoverflow.com/questions/2005358/ucs2-hexencoded-characters-to-utf8-in-php
function local_hex2bin($h)
{
if (!is_string($h)) return null;
$r='';
for ($a=0; $a<strlen($h); $a+=2) { $r.=chr(hexdec($h{$a}.$h{($a+1)})); }
return $r;
};
header('Content-Type: text/html; charset=UTF-8');
mb_http_output('UTF-8');
echo '<html><head>';
echo '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />';
echo '</head><body>';
echo 'output encoding: '.mb_http_output().'<br />';
$querystring = $_SERVER['QUERY_STRING'];
// NOTE: we could substitute one of the following:
// $querystring = '06450631062d0628064b06270020063906270644064500200021';
// $querystring = '00480065006C006C006F';
$ucs2string = local_hex2bin($querystring);
// NOTE: The source encoding could also be UTF-16 here.
// TODO: Should check byte-order-mark, if available, in case
// 16-bit-aligned bytes are reversed.
$utf8string = mb_convert_encoding($ucs2string, 'UTF-8', 'UCS-2');
echo 'query string: '.$querystring.'<br />';
echo 'converted string: '.$utf8string.'<br />';
echo '</body>';
?>
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