The Big "Why equal doesn't equal" Quiz

The Big "Why equal doesn't equal" Quiz

Presented on May 18 2017 at the PHP Tour Conference in Nantes, France and on May 20 2017 at the PHPKonf Conference in Istanbul, Turkey.
http://event.afup.org/phptournantes2017/
http://phpkonf.org/
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Partial slide deck - the actual quiz will not be made public.
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So you think you know PHP? But do you really?

We all compare and test 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 tests and comparisons…. Or are we?

No matter whether you are a beginner or an expert, come and join in the fun for the Big “Why equal doesn’t equal” Quiz, test your knowledge and learn about defensive programming and the quirks of a loose type programming language along the way.
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Links:
http://phpcheatsheets.com/
https://github.com/jrfnl/PHP-cheat-sheet-extended