Set file creation/change time in touch

Description

With the touch function you can set the modification and access time, but not the creation/change time. I have several Windows applications where I need to set the creation time, for example a backup tool that needs to preserve the creation time. I have solved that with a C program that can set creation, modification and access times and that can be invoked from PHP using (Unix) sockets. But that is a relatively complicated solution, it would be much simpler/neater if you could set the creation time using touch.
It would also be nice if the copy function would have a flag to preserve ctime, mtime and a time. In that case a touch to reset ctime, mtime and atime would not be needed at all. But I have a PHP tool that sets ctime and mtime of JPG files based on the ctime and mtime in the Exif header, for that I need the touch solution. A flag in the copy function would be a partial solution, setting ctime with touch is a more general and complete solution.

Inizia esaminando i punti di ingresso esistenti di touch e copy in PHP, quindi analizza come Windows rappresenta l'ora di creazione rispetto alle ore di modifica e accesso. Definisci la semantica supportata per impostare o preservare questi timestamp e verifica il comportamento sulle piattaforme interessate; il lavoro è completato quando la gestione richiesta dei timestamp è specificata e coperta da test.