Delete Files

[treeleaf20]

I have a part of my site that will allow a user to create a group. When they create the group then can assign a picture to that group. I store the filename in the db and then I create create a folder for them on my web server and upload the image to there. My question is if they choose to update their picture I want to delete the old file and then upload the new file that they choose to be their picture. How would I do this. I know that I would have to run a query to get the old file name before updating it in the db but after I get that I'm not sure how to delete it from the web server. I also know how to upload the file so that isn't a problem either, it's just the step before that of deleting it from the server. Thanks for the help.

[treeleaf20]

I believe I would need to use unlink() but I'm not sure how this function works. I read the manual. Would it be:

$qry = "select pic from db where user='1'";
$result = mysql_query($qry);
$resultset = mysql_fetch_array($result);

$dir = "/home/website/public_html/images/$resultset[pic]";
//Not sure of the next part and how to delete it from the actual server
unlink($dir);

Would that do the trick?

[Weedpacket]

Have you tried it?