在项目中时间一律显示为2014-10-20 10:22显得很呆板。在微博、QQ空间等网站通常会显示为几秒前,几分钟前,几小时前等容易阅读的时间,我们称之为友好的时间格式。那么用php怎么实现呢?
大体思路如下:
如果是跨年并且大于3天就显示为具体的时间
如果是今天的
如果是一分钟内则显示几秒之前
如果是一小时内则显示几分钟前
如果是当天且大于一小时则显示为几小时前
如果是昨天则显示为昨天几点
如果是前天则显示为前天几点
如果大于三天(没有跨年)则显示为几月几号
根据以上思路就不难写出实现代码了:
实现代码如下:
//格式化友好显示时间
function formatTime($time){
$now=time();
$day=date('Y-m-d',$time);
$today=date('Y-m-d');
$dayArr=explode('-',$day);
$todayArr=explode('-',$today);
//距离的天数,这种方法超过30天则不一定准确,但是30天内是准确的,因为一个月可能是30天也可能是31天
$days=($todayArr[0]-$dayArr[0])*365+(($todayArr[1]-$dayArr[1])*30)+($todayArr[2]-$dayArr[2]);
//距离的秒数
$secs=$now-$time;
if($todayArr[0]-$dayArr[0]>0 && $days>3){//跨年且超过3天
return date('Y-m-d',$time);
}else{
if($days if($secs elseif($secs else return floor($secs/3600)."小时前";
}else if($days $hour=date('h',$time);
return "昨天".$hour.'点';
}elseif($days $hour=date('h',$time);
return "前天".$hour.'点';
}else{//三天前
return date('m月d号',$time);
}
}
}
仅供参考,欢迎批评指正或者提供更好的方法。

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