Presented on February 20th 2014 at the Amsterdam PHP Meetup, Amsterdam, The Netherlands.

http://www.meetup.com/AmsterdamPHP/events/143000332/

Partial slide deck - the actual quiz will not be made public.

We all compare data on nearly every other line in our code, be it input validation, an if-statement, a switch or determining what to display and how.

So of course we are all experts on how to do these comparisons…. Or are we?

Links: http://phpcheatsheets.com/ https://github.com/jrfnl/PHP-cheat-sheet-extended