Thanks, that explains why it works in Windows. But... should I then just ignore the manual, or are there indeed systems where microtime() and gettimeofday() is unavailable in PHP?
Ivo On Fri, 2011-08-12 at 15:13 +0200, Nikita Popov wrote: > PHP on Windows provides it's own gettimeofday implementation: > http://lxr.php.net/opengrok/xref/PHP_5_3/win32/time.c#51 That's why > there aren't any problems on Windows. > > On Fri, Aug 12, 2011 at 3:02 PM, Ivo F.A.C. Fokkema > <i.f.a.c.fokk...@lumc.nl> wrote: > > Dear list, > > > > I've asked at the PHP general list also, but got no responses; perhaps > > here I have more luck. > > > > For years, I've used microtime() to get the current time including the > > microseconds. However, somebody pointed me at a sentence in the manual > > page: "This function is only available on operating systems that support > > the gettimeofday() system call." > > > > And PHP's gettimeofday() manual page suggests the same situation: "This > > is an interface to gettimeofday(2)." > > > > But... what kind of systems then don't have this system call available? > > Some googling around provided lots of C programmers trying to get a > > gettimeofday() implementation in C on Windows, since it doesn't seem to > > include it. But PHP's microtime() and gettimeofday() seem to work just > > fine on Windows (at least the boxes I could get to). Also, I just can't > > seem to find PHP code anywhere on the web that seems to check the > > existence of either microtime() or gettimeofday() before they call it, > > and there have to be lots of PHP programmers out there working on > > Windows boxes so... > > > > Should I ignore the sentence in the manual and just trust that both > > functions are always available? Or is there some other cross-platform > > way to get to the system time, including the microseconds, without using > > microtime() or gettimeofday()? Or will both functions just always exist, > > but just not give me microseconds if there is no gettimeofday() system > > call available? > > > > Any help is highly appreciated. > > > > Thanks, > > > > Ivo
