- PDO_ODBC was written to conform to the ODBC Version 3.0 API
- DB2 CLI API happens to be almost identical to ODBC Version 3.0 API
- Author: Wez Furlong, creator of PDO
- Primary development platform: DB2 Universal Database Version 8.2 running on my home computer
- On Windows, PDO_ODBC support is compiled into the core of the PHP interpreter (beginning with PHP 5.1)
- PDO_ODBC supports two other compile "flavours":
- unixODBC - relying on the unixODBC driver manager and an ODBC driver
- ibm-db2 - compiled directly against the DB2 CLI libraries for best performance
In the next exercise, you will compile the ibm-db2 flavour of PDO_ODBC support into PHP 5.1 so you can access Apache Derby.