wchar_t到PHP UTF8文件

Question

i wrote a php script which recieves http POST packages from a windows-client-software.

the windows client uses the "WinHttpClient" for C++.

the WinHttpClient takes the messages i send as wchar_t.

the problem now is, i recieve the messages on my PHP file, but some signs like the "®" sign are shown as "®".

as far as i know, i cannot change the charset of my client to utf-8 or something like that. but maybe some people here know how to "convert" the wide-chars to an utf8 with which PHP can work fine. Because i have to persist the data into an Database which runs only with utf-8.

I tried it with the following, but it doesnt change it :(

function ewchar_to_utf8($matches) {
    $ewchar = $matches[1];
    $binwchar = hexdec($ewchar);
    $wchar = chr(($binwchar >> 8) & 0xFF) . chr(($binwchar) & 0xFF);
    return iconv("unicodebig", "utf-8", $wchar);
}

function special_unicode_to_utf8($str) {
return preg_replace_callback("/\\\u([[:xdigit:]]{4})/i", "ewchar_to_utf8", $str);
}

maybe you got some ideas :) Thanks

Answer 1

the problem now is, i recieve the messages on my PHP file, but some signs like the "®" sign are shown as "®".

That means you already have UTF-8... misinterpreted in ISO-8859-1/Windows-1252.

If it's like this

<?php

echo $rsymbol; //Comes out as ®

Then all you need to change:

<?php
header("Content-Type: text/html; charset=UTF-8");
echo $rsymbol; //Comes out as ®