php計算時間差，時間比較，時間計算
阿新 • • 發佈：2019-01-24
複製程式碼
<?php
$zero1=date(“y-m-d h:i:s”);
$zero2=”2010-11-29 21:07:00′;
echo
“zero1的時間為：”.$zero1.”<br>”;
echo
“zero2的時間為：”.$zero2.”<br>”;
if(strtotime($zero1)<strtotime($zero2)){
echo
“zero1早於zero2′;
}else{
echo
“zero2早於zero1′;
}
?>
複製程式碼
上面是比較兩個絕對時間的大小複製程式碼
<?php
$zero1=strtotime
(date("y-m-d h:i:s"));
//當前時間 ,注意H 是24小時 h是12小時
$zero2=strtotime
("2014-1-21 00:00:00");
//過年時間，不能寫2014-1-21 24:00:00 這樣不對
$guonian=ceil(($zero2-$zero1)/86400);
//60s*60min*24h
echo
"離過年還有<strong>$guonian</strong>天！";
?>
複製程式碼
上面是倒計時小程式 例項程式碼
複製程式碼
<?php//PHP計算兩個時間差的方法
$startdate="2010-12-11 11:40:00";
$enddate="2012-12-12 11:45:09";
$date=floor((strtotime($enddate)-strtotime($startdate))/86400);
$hour=floor((strtotime($enddate)-strtotime($startdate))%86400/3600);
$minute=floor((strtotime($enddate)-strtotime($startdate))%86400/60);
$second=floor((strtotime($enddate)-strtotime($startdate))%86400%60);
echo
$date."天<br>";
echo
$hour."小時<br>";
echo
$minute."分鐘<br>";
echo
$second."秒<br>";
?>
複製程式碼
<?php
/**
* 時間差計算
*
* @param Timestamp $time
* @return String Time Elapsed
* @author Shelley Shyan
* @copyright http://phparch.cn (Professional PHP Architecture)
*/
function
time2Units ($time)
{
$year
= floor($time
/ 60 / 60 / 24 / 365);
$time
-= $year
* 60 * 60 * 24 * 365;
$month
= floor($time
/ 60 / 60 / 24 / 30);
$time
-= $month
* 60 * 60 * 24 * 30;
$week
= floor($time
/ 60 / 60 / 24 / 7);
$time
-= $week
* 60 * 60 * 24 * 7;
$day
= floor($time
/ 60 / 60 / 24);
$time
-= $day
* 60 * 60 * 24;
$hour
= floor($time
/ 60 / 60);
$time
-= $hour
* 60 * 60;
$minute
= floor($time
/ 60);
$time
-= $minute
* 60;
$second
= $time;
$elapse
= '';
$unitArr
= array('年'
=>'year',
'個月'=>'month',
'周'=>'week',
'天'=>'day',
'小時'=>'hour',
'分鐘'=>'minute',
'秒'=>'second'
);
foreach
( $unitArr
as $cn =>
$u )
{
if
( $$u
> 0 )
{
$elapse
= $$u
. $cn;
break;
}
}
return
$elapse;
}
$past
= 2052345678; // Some timestamp in the past
$now
= time(); // Current timestamp
$diff
= $now -
$past;
echo
'發表於' . time2Units($diff) .
'前';
?>