getdate
do you realy think that convertion to String and back to float can be fast??
this function runs 10 times faster than utime() :
function fastUtime()
{
$t = gettimeofday();
return (float) ($t['sec'] + $t['usec'] / 1000000.0);
}
gettimeofday
(PHP 4, PHP 5)
gettimeofday — Pobiera aktualny czas
Opis
array gettimeofday
( void
)
Jest to interfejs do gettimeofday(2). Funkcja zwraca tablicę asocjacyjną zawierającą dane odebrane z wywołania systemowego.
- "sec" - sekundy
- "usec" - mikrosekundy
- "minuteswest" - minuty na zachód od Greenwich
- "dsttime" - rodzaj czasu: letni/zimowy
add a note
User Contributed Notesgettimeofday
void0( the dog )yandex.ru
21-Sep-2006 08:07
21-Sep-2006 08:07
lucas dot karisny at linuxmail dot org
14-Feb-2005 03:26
14-Feb-2005 03:26
A small improvement on getTimer. Using vsprintf instead of sprintf there is no need to assign the array:
<?php
function utime()
{
return (float) (vsprintf('%d.%06d', gettimeofday()));
}
?>
In a test on my machine getTimer took 0.037519 seconds to run through 1000 iterations versus 0.027912 seconds for utime. In total, utime runs about 25% quicker. The use is negligible in an actual benchmarking scenario, but this could provide a slightly more accurate estimate. Of course the time it takes to run the function could always be stored at the start and subtracted from your total value each time it is run.
middleto at pilot dot msu dot edu
13-Aug-1999 04:49
13-Aug-1999 04:49
The types of DST correction (from sys/time.h on a Linux system):
0 Not on DST
1 USA DST
2 Austrailian DST
3 Western European DST
4 Middle European DST
5 Eastern European DST
6 Canada DST
7 Great Britain and Eire DST
8 Rumania DST
9 Turkey
10 Australian DST (with shift in 1986)