Fix problem upgrade wordpress 2.2.3 to 2.5.1
Couple days ago, i decided to upgrade my other blog engine from wordpress 2.2.3 to wordpress 2.5.1. It wasn’t easy as we can read at how to upgrade wordpress article.
The error message you may get is like bellow :
Call to undefined function _http_build_query() in /your_wp_directory/wp-includes/functions.php on line 583
I found much peoples get this problem as [...]
