Studio-42/elFinder — Issue #161: Updating thumbnails only when necessary
Author: Cellard
Created: 2011-11-25 14:27:41+00:00
State: open

See the example:

```php
filemtime($thumbnailFile) {
unlink($thumbnailFile);
}
```

I hope it's clear. You don't need to use rand() function and tmbCleanProb property to keep thumbnails up to date.