Delete Folders Cron Event

gistfile1.txt

// delete previous days folders
function delete_old_folders() {
	$uploads = wp_upload_dir();
	$uploadPath = trailingslashit( $uploads['path'] ) . 'user-uploads/';

	$folders = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($uploadPath, RecursiveDirectoryIterator::SKIP_DOTS),
    RecursiveIteratorIterator::CHILD_FIRST
	);
	foreach( $folders as $name => $folder ){
		if( $name !== $uploadPath
			&& $name !== $uploadPath . date('Y')
		 	&& $name !== $uploadPath . date('Y') . '/' . date('m')
			&& strpos($name, date('Y') . '/' . date('m') . '/' . date('d')) === false
		) {
			$todo = ($folder->isDir() ? 'rmdir' : 'unlink');
    	$todo($folder->getRealPath());
		}
	}
}

if (! wp_next_scheduled ( 'delete_old_folders' )) {
	wp_schedule_event(time(), 'daily', 'delete_old_folders');
}