WordPress Pingback Encoding Fix

(Entrada en inglés para que la pueda leer más gente. Si alguien no la entiende que lo comente y se la traduzco.)

WordPress v1.5 fixes the trackback encoding problem between blogs with distinct charsets, but doesn’t fix the same problem with pingbacks.
Here you have a “xmlrpc.php” file hack that solves that problem: wordpress_pingback_encoding_fix.zip
Unzip and upload the file to your blog main folder, overwriting the old one.

I have setup two blogs with distinct charset encoding. You can make your pingback tests on any of their posts:
WPUTF (WordPress Blog with UTF-8 encoding)
WPISO (WordPress Blog with ISO-8859-1 encoding)