ho installato php, apache e mysql

il problema:


"[1.20] I receive the error "cannot load MySQL extension, please check PHP Configuration".
To connect to a MySQL server, PHP needs a set of MySQL functions called "MySQL extension". This extension may be part of the PHP distribution (compiled-in), otherwise it needs to be loaded dynamically. Its name is probably mysql.so or php_mysql.dll. phpMyAdmin tried to load the extension but failed. "

quando cerco di aprire una pagina dal localhost...
qualcuno mi può aiutare?
grazie Yoghi