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[edit] Last updated: Fri, 18 Sep 2009

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gettimeofday

(PHP 4, PHP 5)

gettimeofdayВзима текущо време

Описание

array gettimeofday ( void )

Това е интерфейс за gettimeofday(2). Връща асоциативен масив, съдържащ данните, върнати от системното извикване.

  • "sec" - секунди
  • "usec" - микросекунди
  • "minuteswest" - минути на запад от Грийнуич
  • "dsttime" - тип на dst (лятно часово време) поправка

Example #1 Пример за gettimeofday()

<?php
print_r
(gettimeofday());
?>

Изходът ще изглежда подобно на:

Array
(
    [sec] => 1073504408
    [usec] => 238215
    [minuteswest] => 0
    [dsttime] => 1
)



add a note add a note User Contributed Notes gettimeofday
lucas dot karisny at linuxmail dot org 13-Feb-2005 06:26
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 12-Aug-1999 07:49
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)

 
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