How important is it to adhere to the standard URL structure in PHP web development, and what are the implications of deviating from it?

It is important to adhere to the standard URL structure in PHP web development as it helps in creating clean and user-friendly URLs, improves search engine optimization, and makes it easier to manage and navigate the website. Deviating from the standard URL structure can lead to confusion for users and search engines, impacting the overall usability and visibility of the website.

// Redirect to a clean URL structure using PHP
if ($_SERVER['REQUEST_URI'] == '/index.php?page=about') {
    header('Location: /about');
    exit();
}