What are the best practices for securing PHP includes to prevent hacking attempts?

To secure PHP includes and prevent hacking attempts, it is essential to validate user input, use absolute paths instead of relative paths, and disable the ability to include remote files. 

// Example of securing PHP includes
if (isset($_GET['page'])) {
    $page = $_GET['page'];
    $allowed_pages = ['home', 'about', 'contact']; // Define allowed pages
    
    if (in_array($page, $allowed_pages)) {
        include_once($page . '.php'); // Include the specified page
    } else {
        include_once('404.php'); // Include a 404 page if the requested page is not allowed
    }
}

Keywords

PHP includes security hacking prevention best practices

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