How can PHP beginners avoid common pitfalls when trying to manipulate browser behavior using PHP?

Beginners can avoid common pitfalls when manipulating browser behavior using PHP by ensuring they are using the correct PHP functions and syntax for interacting with the browser. They should also be mindful of the differences between server-side and client-side scripting, and ensure they are using the appropriate method for their desired outcome. Additionally, beginners should thoroughly test their code across different browsers to ensure compatibility.

// Example code snippet demonstrating how to redirect a user to a different page using PHP
header("Location: http://www.example.com");
exit;