<?php
function showTimeObj($msg,$timeObj)
{
  //使用預(yù)定義的格式來(lái)轉(zhuǎn)換時(shí)間字符串
  if ($msg!=NULL)
  {
    echo $msg.":";
    echo "<br>".$timeObj->format(DATE_W3C)."<br>";
  }
  else
  {
    echo $timeObj->format(DATE_ATOM)."<br>";
  }
}
try
{
  //設(shè)置時(shí)區(qū)
  $timezones = new DateTimeZone('Asia/Shanghai');
  //獲取當(dāng)前時(shí)間
  $timeObj=new DateTime("now",$timezones);
}
catch (Exception $e)
{
  echo $e->getMessage();
}
//輸出的+08:00代表東八區(qū)、若把時(shí)區(qū)設(shè)為'Asia/Tokyo',則為+09:00
showTimeObj('current time',$timeObj);
echo "<br>"."<br>";
echo "use DateInterval object to add date time".":"."<br>";
//加上一天(P=period,必備)
$timeObj->add(new DateInterval('P1D'));
showTimeObj('current time + 1 day',$timeObj);
//加上一小時(shí)(T=time,可選)
$timeObj->add(new DateInterval('P0DT1H'));
showTimeObj('current time + 1 day & 1hour',$timeObj);
echo "<br>"."<br>";
echo "use DatePeriod to process time range like a iterator".":"."<br>";
//DatePeriod: 迭代處理區(qū)間內(nèi)的日期
$interval= new DateInterval('P0DT2H');
$start = new DateTime('2018-08-08',$timezones);
$end = new DateTime('2018-08-09',$timezones);
$timeRange = new DatePeriod($start,$interval,$end);
foreach ($timeRange as $hour)
{
  showTimeObj(NULL,$hour);
}
?>