What could be causing the issue of images not being displayed and stylesheets not being found when using a security script in PHP?

The issue of images not being displayed and stylesheets not being found when using a security script in PHP could be caused by the security script blocking access to certain directories or files that are necessary for loading images and stylesheets. To solve this issue, you can modify the security script to allow access to the directories and files needed for images and stylesheets to be displayed correctly.

// Example of modifying the security script to allow access to necessary directories and files
// Allow access to images directory
$allowed_directories[] = 'images';

// Allow access to stylesheets directory
$allowed_directories[] = 'stylesheets';

// Check if requested file is in allowed directories
if (in_array(dirname($_SERVER['SCRIPT_NAME']), $allowed_directories)) {
    // Serve the requested file
    return false;
} else {
    // Block access to unauthorized directories
    die('Access denied!');
}