Description
bool 
unlink ( string filename [, resource context] )
     Deletes filename.  Similar to the Unix C
     unlink() function. Returns TRUE on success or FALSE on failure.
    
Note: 
      As of PHP 5.0.0 unlink() can also be
      used with some URL wrappers.  Refer to Appendix M
      for a listing of which wrappers support unlink().
     
     See also rmdir() for removing directories.