Reading TYPO3 Wiki I’ve found the page What is an extension?, it talks about 3 useful extensions when you are developing:
- Extension Kickstarter (kickstarter)
- Extension Developement Evaluation (extdeveval)
- Show Typo3 Info (sg_showdoku)
I didn’t know sg_showdoku yet, this is a great extension that provide a plugin to insert in a page and it shows all the content of variable $GLOBALS, moreover you can browse through the content in a very handy way.
A screenshot:
Please drop me a line if you have any feedback. Thanks!