I'm trying to replace a couple of lines of code:

        $dotpos = 1 - (strlen($userfile_name) - strpos($userfile_name, '.'));
        $extension = substr($userfile_name, $dotpos);

with a simpler regular expression:
        $extension = eregi_replace( "/.*", "", $userfile_name);

However it isn't working..

What I'd like to do is to find the extension of a file name and place that in a 
variable.  So in 
'/home/mike/test.txt', I want to have the statement return 'txt'

Any help would be appreciated..

Mike Gifford, OpenConcept Consulting, http://openconcept.ca
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