如何通过PHP访问文件的服务器端图标？

I have a PHP script running that lists files in a certain directory on the server. Is there any way to access the file's icon metadata? Lots of issues with this I suppose (eg: depends on the OS hosting the script. depends on whether the file is using a custom icon. still have to convert the icn file to something that can be displayed in a browser) but any suggestions are welcome. I guess I could display a different icon depending on the file extension, but it would be nice to do it automatically.I have a PHP script running that lists files in