BlameThePixel!

And yet, Knifa has designed huge PHP systems, such as BTA. This test is incredibly inaccurate. Half of it would generate an error if used in a PHP document anyway.

eh? There's nothing syntactically wrong with the test, if you put any of that into your code you won't get any errors. Knifa has created fairly complex php systems, but these are the nuances of php (and most other languages) he hasn't learned yet. I wouldn't have expected knifa to know most of this because they're not things you have to use in PHP most of the time. They have more use in other languages such as C(++). I mean I can't think of a single situation where you'd need to typecast a variable in PHP, yet in Java and C you have to do it all the time. Most 12 year olds wouldn't have a clue how to write any php, most people new to php wouldn't know any of this, so it's nothing too surprising, really.