From jukka.m.svahn on December 15, 2012 10:02:17

PHP 5.5 will deprecate classic MySQL extension. This makes it a great time to (finally) update to PDO.

This would (in small steps) grow into an actual database adapter interface, and in long term to RDBMS independence.

For now, the to-do list would include;

• Investigate current code base.
• Try out stuff by (simply) swapping MySQL functions to PDO.
• Introduce modern database adapter and abstraction layers.
• Turn the current procedural layer to a wrapper.

Original issue: http://code.google.com/p/textpattern/issues/detail?id=341