Mini Traffic Site: Record site accesses in a database using PDO

This class can record site accesses in a database using PDO.

It can record the access of the current user in text file or in a MySQL database table to which it connects using the PDO extension.

The class can analyze the user agent and avoid recording accesses performed by known search engines and other robots.

The class can also display the statistics of accesses in a Web page like th number of site visits, unique visitors in the current and previous day, number of online users considering accesses in the last minute, as well top statistics of visit, visitors and users online.