| 
                Filename '$file' seems to be a directory.
             | 
                The filename you gave the method does not reference a regular-file but a
                directory.
             | 
                Specify a correct filenamepath (eg. /my/file/path/foo.html, ../foo.html).
             | 
| 
                Could not get last-modification-date of '$file'.
             | 
                The last-modification date could not be determined by PHP. Reasons for this may be
                that your FTP-server does not support the used command or that you gave the function a
                non existent file as reference.
             | 
                     
             | 
| 
                Date-format failed on timestamp '$res'.
             | 
                The given format-string was not well formated.
             | 
                Check the documentation of the PHP function date().
             |