| Firebird |
| Mysql |
| Pgsql |
| Sqlite |
| DriverInterface | PDO Interface to implement for database drivers |
| PDOInterface | Interface describing the PDO class in PHP |
| PDOStatementInterface | Interface created from official PHP Documentation |
| SQLInterface | parent for database manipulation subclasses |
| AbstractDriver | Base Database class |
| AbstractSQL | parent for database manipulation subclasses |
| AbstractUtil | Abstract class defining database / table creation methods |