What are the potential drawbacks of storing individual files and zip files on the server for a long time in terms of web space usage?

Storing individual files and zip files on the server for a long time can lead to excessive web space usage, which can slow down the server performance and increase hosting costs. To address this issue, regularly clean up old or unused files, implement file compression techniques, and consider offloading files to cloud storage solutions.

// Example PHP code to clean up old files in a directory
$directory = '/path/to/directory/';
$files = glob($directory . '*');
$expire_time = strtotime('-30 days'); // Set the expiration time (e.g., 30 days)

foreach ($files as $file) {
    if (filemtime($file) < $expire_time) {
        unlink($file); // Delete the file if it's older than the expiration time
    }
}