我信會在很多網站看到一些文章發布之後會顯示此文章是在幾秒幾前發的或幾個月前發的文件，下面我來給大家介紹利用php計算時間差來計算文章發表距現在時間相隔多久了。 代碼如下 復制代碼
<?php
/**
* 時間差計算
*/
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' ;
?>
