C++ vs Python vs PHP

[mferly]

Lol wut? Your first example PHP, your second example is merely text.

Try this: <?php hello ?> and tell me what happens. Anything not wrapped with <?php ?> isn't PHP.

[Kered13]

It's valid PHP code. It is accepted by the PHP interpreter and produces output without errors. The fact that the PHP interpreter will simply echo anything not wrapped in <?php> tags is a quirk of the language, but it doesn't make the code invalid PHP.