The PDO_SQLITE Data Source Name (DSN) is composed of the following elements:
The DSN prefix is sqlite:.
To access a database on disk, append the absolute path to the DSN prefix.
To create a database in memory, append memory: to the DSN prefix.
The SQLite extension in PHP 5.1 provides a PDO driver that supports accessing and creating SQLite 2 databases. This enables you to access databases you may have created with the SQLite extension in previous versions of PHP.
Note: The sqlite2 driver is only available in PHP 5.1 if you have enabled both PDO and ext/sqlite. It is not currently available via PECL.
The DSN prefix for connecting to SQLite 2 databases is sqlite2:.
To access a database on disk, append the absolute path to the DSN prefix.
To create a database in memory, append memory: to the DSN prefix.