Mysterious text appearing on screen next to my log in/sign up form [duplicate]

I keep seeing “if ($_SERVER[“REQUEST_METHOD”] == “POST”) { if ($username && !$password) { echo ”; } }” next to my form and I have no idea how to fix it since I just began learning to code using VS Code.

Tried to create a “check if username and password are in database” type of thing and I was not expecting some of the code (that snippet is not even in my code) to be visible.