FFMPEG与php 5.3？

I was able to create thumbnail via FFMPEG when using PHP 5.2. Now, I've updated it to PHP 5.3 and the DL() function is not fully compatible. Is there a way around to load the FFMPEG extension without using the DL() function?

Yes, through php.ini. The DL function was removed because it was a pretty bad idea™. The syntax is

extension=your_extension.so