[BNM] PHP help - check directory for file

[Sebastian von Bischopink]

Hi BNM,

I am in need of a small php-script that allows me to check in a  
specific directory
on the server whether a .pdf file is present or not. If a pdf file is  
found, the script
should echo a link to the file. Else it should not display anything.

I reckon this should be pretty straight forward using opendir/readdir  
and an if/else statement,
but then i am not a php coder. So any help would be greatly appreciated.

Thanks in advance,

Seb