A formatted date, if format is provided.
A timestamp of the date otherwise.
Returns the inode change time of a file as a date value or formatted date string, which is accessed via PHP’s filectime function. The inode change time of a file is described in the manual page for filectime as follows:
“In most Unix filesystems, a file is considered changed when its inode data is changed; that is, when the permissions, owner, group, or other metadata from the inode is updated.”
This is not the same as the modified time, see the method WOOF_File::modified for the modification time.
Note: the format string uses the same format as the PHP date function, with the same token extensions supported by the date_format.
String $format = null
A string to format the date.