2012
PHP Error | error reporting for PHP
by Xavier Lacot & 2 othersA nice stack trace generation tool for PHP.
2010
Google Chrome Extensions: Firebug Lite
by Xavier Lacot & 2 othersFirebug Lite easily integrated into Chrome. Even if I am not a fan of Chrome, because of the omnipotence of Google, I find this tool very useful as a debug facility.
2008
Opera Dragonfly
by Xavier Lacot & 6 othersWelcome to Opera Dragonfly alpha, the foundations of Opera's upcoming Developer Tools. Debug JavaScript, inspect CSS and the DOM, and view any errors – Opera Dragonfly makes developing using Opera easier than ever, both on your computer and mobile phone.
2007
YSlow for Firebug
by Xavier Lacot & 21 others (via)YSlow analyzes any web page and generates a grade for each rule and an overall grade. If a page can be improved, YSlow lists the specific changes to be made.
Xdebug 2 released - Derick Rethans
by Xavier Lacot & 1 otherAfter almost four years of work, Xdebug 2 is finally ready. With improved functionality and many new features it is ready to totally change the way you develop in PHP.... Nothing less ? :)
2006
print_r for Javascript version 0.2 and Bookmarklet version
by Xavier Lacot & 1 otherprint_r -like Functionality for Javascript
1
(6 marks)