No, fflush will flush the PHP application buffers out to the operating system, it does in contrast to fsync not provide a guarantee the operating system will immediately persist to the underlying storage device.
On Mon, 1 Jun 2020, 18:49 Dennis Birkholz, <p...@dennis.birkholz.biz> wrote: > Hello David, > > isn't fflush exactly this: > https://www.php.net/manual/en/function.fflush.php > > Greets > Dennis > > Am 01.06.20 um 18:56 schrieb David Gebler: > > Exactly as the subject says, I would like to propose an RFC for adding an > > fsync() function for file resources, which would in essence be a thin > > wrapper around C's fsync on UNIX systems and _commit on Windows. > > > > It seems to me an odd oversight that this has never been implemented in > PHP > > and means PHP has no way to perform durable file write operations, making > > it inherently unsuitable for any systems requiring more intensive I/O, > > mission critical logs, auditing, etc. > > > > I am not really a C programmer and I have been able to implement a simple > > working prototype of this as a compiled extension in merely a few hours, > so > > I'm sure it wouldn't be difficult to bring in to the language core where > > the functionality really belongs. > > > > Every other major programming language otherwise comparable to PHP in > > features supports a way of providing durability. > > > > Thanks. > > > >
