来自更友好的时间格式如“3分钟前”【腾讯微博iweibo2.0】

/**
 * timestamp转换成显示时间格式
 * @param $timestamp
 * @return unknown_type
 */
function tTimeFormat($timestamp)
{
  $curTime = time();
  $space = $curTime - $timestamp;
 //1分钟
 if($space < 60)
  {
   $string = "刚刚";
   return $string;
 }
 elseif($space < 3600) //一小时前
 {
   $string = floor($space / 60) . "分钟前";
   return $string;
 }
 $curtimeArray = getdate($curTime);
  $timeArray = getDate($timestamp);
 if($curtimeArray['year'] == $timeArray['year'])
 {
   if($curtimeArray['yday'] == $timeArray['yday'])
   {
     $format = "%H:%M";
      $string = strftime($format, $timestamp);
      return "今天 {$string}";
    }
   elseif(($curtimeArray['yday'] - 1) == $timeArray['yday'])
   {
     $format = "%H:%M";
      $string = strftime($format, $timestamp);
      return "昨天 {$string}";
    }
   else
    {
     $string = sprintf("%d月%d日 %02d:%02d", $timeArray['mon'], $timeArray['mday'], $timeArray['hours'], 
      $timeArray['minutes']);
     return $string;
   }
 }
 $string = sprintf("%d年%d月%d日 %02d:%02d", $timeArray['year'], $timeArray['mon'], $timeArray['mday'], 
  $timeArray['hours'], $timeArray['minutes']);
  return $string;
}