Regular Expressions - A relatively simple search...

Hello, 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 -- Mike Gifford, OpenConcept Consulting, http://openconcept.ca Offering everything your organization needs for an effective web site. Abolish Nuclear Weapons Now!: http://pgs.ca/petition/ It is a miracle that curiosity survives formal education. - A Einstein