php判断留言时间刚刚，几分钟前，几小时前。。。函数分享

function tranTime($time) {

$rtime = date("m-d H:i",$time);

$htime = date("H:i",$time);

$time = time() - $time;

if ($time < 60) { $str = '刚刚'; }

elseif ($time < 60 * 60)

{ $min = floor($time/60); $str = $min.'分钟前'; }

elseif ($time < 60 * 60 * 24)

{ $h = floor($time/(60*60));

$str = $h.'小时前 '.$htime; }

elseif ($time < 60 * 60 * 24 * 3)

{ $d = floor($time/(60*60*24));

if($d==1) $str = '昨天 '.$rtime;

else $str = '前天 '.$rtime; }

else { $str = $rtime; } return $str;
}