RE: [PHP] Representing microtime() values

2007. 11. 27, kedd keltezéssel 09.46-kor Tomi Kaistila ezt írta: > >>Hi everyone > >> > >>Here's a small problem that I haven't been able to figure out and hence I > >>figured I'd post and see if anyone can explain this to me. > >> > >>-snip- > >> > >How exactly does PHP handle these values internally? Does anyone know? > > > >Tomi: > > > >Try this: > > > >http://www.webbytedd.com/b/timed/ > > > >HTH's > > > >tedd > > Thanks Tedd, but that's not really what I asked for. The difference in your > script is that it doesn't use the TRUE flag (unlike the script given on > PHP's manual). But not much of anything else. PHP still behaves the same way > with the float numbers when you try to look at them. And that is the part > that I wish to understand. > > PHP clearly stores a number with more than two decimal points when you call > microtime(). But when you print it, it only shows two. that seems to me like a floating point precision issue. after all, the integer part of the microtime result is a quite big number... I even tried a workaround like $a = explode(' ', microtime()); echo $a[0] + $a[1]; but it resulted in the exact same result like microtime(true) anyone knows something for sure? greets Zoltán Németh > > Why is this? > > > Tomi Kaistila > PHP Developer >