In XAMPP, where is location of the MySQL headers stored? I recently upgraded Apache, PHP and MySQL, but when I go to phpinfo.php, it says my Client API headers are version 5.0.51b, which was the old version of MySQL I had installed, but the Cilent API library says 5.0.87, which is the new version of MySQL. I know it gets the library from libmysql.dll, which I have in Windows\system32, but I need to know how to set php to include the mysql\include path so it knows where the correct header files are. I looked in the php.ini file, but didn't see a setting for the location of the mysql headers files. Do I need to copy the mysql .h files to xampp\apache\include? Thanks.