typoscript - Create custom extensions or plugins in Typo3 6.0.4 -

i new typo3 user.

how create extension or plugin in typo3 v 6.0, take uid input , return titles of root page , child pages if any. using fluid templates display returned data on front end.

thank in advance.

extension builder in version 2.5.0+ dedicated creating extensions in typo3 ver 6.0+

fe plugin action in extension, play little builder, you'll familiar concept soon.