1.<?php 2. $zero1=date(“y-m-d h:i:s”); 3. $zero2=”2010-11-29 21:07:00′; 4. echo “zero1的時間為：”.$zero1.”<br>”; 5. echo “zero2的時間為：”.$zero2.”<br>”; 6. if(strtotime($zero1)<strtotime($zero2)){ 7. echo “zero1早於zero2′; 8. }else{ 9. echo “zero2早於zero1′; 10. } 11. ?>
上面是比較兩個絕對時間的大小
<?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！"; ?>
上面是倒計時小程序 實例代碼
<?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."分鍾<br>"; echo $second."秒<br>"; ?>
<?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', '分鍾'=>'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';
?>