Why this ivalid code??

Question

#include <file.php>

Answer 1

It's seems you try to mix C and PHP syntax.

In PHP :
include "file.php";

Generaly you should use require_once instead include.

Answer 2

Did you get any error message? what did it say?
Are you doing this in SoloLearn Code Playground or in your machine?
Have you checked for file existence? is it empty file?

#include and #require behaves differently on failure to load a file.