<plaintext>Input is 

/path/to/file/US.123.kyle.20081029.zip


Output is 

Array
(
    [dirname] => /path/to/file
    [basename] => US.123.kyle.20081029.zip
    [extension] => zip
    [filename] => US.123.kyle.20081029
)


Input is 

/path/to/file/US.123.kyle.20081029.gz


Output is 

Array
(
    [dirname] => /path/to/file
    [basename] => US.123.kyle.20081029.gz
    [extension] => gz
    [filename] => US.123.kyle.20081029
)


Input is 

/path/to/file/US.123.kyle.20081029.tar.gz


Output is 

Array
(
    [dirname] => /path/to/file
    [basename] => US.123.kyle.20081029.tar.gz
    [extension] => gz
    [filename] => US.123.kyle.20081029.tar
)


Input is 

/path/to/file/US.123.kyle.20081029.avi


Output is 

Array
(
    [dirname] => /path/to/file
    [basename] => US.123.kyle.20081029.avi
    [extension] => avi
    [filename] => US.123.kyle.20081029
)


.