function fn_formatdate($time){     
    $rtime = date("Y-m-d H:i",$time);     
    $htime = date("H:i",$time);           
    $time  = time() - $time;       
    if ($time < 60){         
            $formatime = '刚才';     
    }elseif($time < 60 * 60){         
            $min = floor($time/60);         
            $formatime = $min.'分钟前';     
    }elseif($time < 60 * 60 * 24){         
            $h = floor($time/(60*60));         
            $formatime = $h.'小时前';     
    }elseif($time < 60 * 60 * 24 * 3){         
            $d = floor($time/(60*60*24));         
            if($d==1){
                    $formatime = '昨天 '.$htime;
            }else{
                    $formatime = '前天 '.$htime;     
            }
    }else{         
            $formatime = $rtime;     
    }     
    return $formatime; 
}