My SQLite is version 3.4.0: image
However my phpinfo's PDO support for SQLitev3 is not enabled/listed: image
How can I enable it? I installed my web server via XAMPP.
I think that the PDO driver for sqlite3 is called 'sqlite', so you already have it installed. The sqlite2 driver is older.
PDO_SQLITE is a driver that implements the PHP Data Objects (PDO) interface to enable access to SQLite 3 databases.
In PHP 5.1, the SQLite extension also provides a driver for SQLite 2 databases; while it is not technically a part of the PDO_SQLITE driver, it behaves similarly, so it is documented alongside it. The SQLite 2 driver for PDO is provided primarily to make it easier to import legacy SQLite 2 database files into an application that uses the faster, more efficient SQLite 3 driver. As a result, the SQLite 2 driver is not as feature-rich as the SQLite 3 driver.
Go to your php.ini file and search for "sqlite". These are probably commented:
extension=php_pdo_sqlite.dll
extension=php_sqlite.dll
Uncomment them, and restart Apache.
edit:
there is a discussion on the topic here:
"pdo_sqlite" and "sqlite3" are different extensions and are loaded in php.ini in different lines:
extension=php_pdo_sqlite.dll
extension=php_sqlite3.dll
I fixed this issue on a linux/unix system with the following lines added in php.ini :
extension=pdo_sqlite.so
extension=sqlite.so
来源：https://stackoverflow.com/questions/929585/how-to-enable-the-pdo-driver-for-sqlite3-in-php