أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
in relation to PHP, MySQL is the old database driver, and MySQLi is the Improved driver. MySQLi takes advantage of the newer features of MySQL5. Lifted verbatim from the php.net site:
You have the choice of using mysql, mysqli, or PDO essentially.
Cheers!