php humanized display time

函 // Time conversion function (display time humanization)

function transf ($ time) {
$ rtime = date ("m-d h: i", $ time);
$ htime = date ("h: i" . 60 * 60)
                                                             $min = floor($time/60); *60); 60*24)); If($d==1)
$str = 'yesterday'.$rtime;
else
$str = 'the day before yesterday'.$rtime;
}else
{ time ;
}
return $str;
}
$times=time()-254;
echo tranTime($times);