How to make a redirect to the application installation page?

Question

CodeIgniter

There is a certain web application for which I am writing an installer. Everything is fine, but I don’t understand how best to redirect to the installation page from any page. There is a routing file, I can prescribe in it and after installation rewrite this routing. But perhaps there are easier ways?

Answer 1

As an option:

if (file_exists('install.php')) {
  header('Location: /install.php');
}

This is if routing is not used in install.php.