php返回相对时间（如：20分钟前，3天前）的方法 本文实例讲述了php返回相对时间（如：20分钟前，3天前）的方法。分享给大家供大家参考。具体如下：
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function plural($num) {
if ($num != 1)
return s;
}
function getrelativetime($date) {
$diff = time() - strtotime($date);
if ($diff
return $diff. 秒.plural($diff). 前;
$diff = round($diff/60);
if ($diff
return $diff. 分钟.plural($diff). 前;
$diff = round($diff/60);
if ($diff
return $diff. 小时.plural($diff). 前;
$diff = round($diff/24);
if ($diff
return $diff. 天.plural($diff). 前;
$diff = round($diff/7);
if ($diff
return $diff. 星期.plural($diff). 前;
return on .date(f j, y, strtotime($date));
}
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