```phpcreatetime = $createtime;              $this->gettime = $gettime;      }      function getseconds()      {              return $this->createtime-$this->gettime;          }      function getminutes()         {         return ($this->createtime-$this->gettime)/(60);         }        function gethours()         {         return ($this->createtime-$this->gettime)/(60*60);         }        function getday()         {          return ($this->createtime-$this->gettime)/(60*60*24);         }        function getmonth()         {          return ($this->createtime-$this->gettime)/(60*60*24*30);         }         function getyear()         {          return ($this->createtime-$this->gettime)/(60*60*24*30*12);         }         function index()         {              if($this->getyear() > 1)              {                   if($this->getyear() > 2)                      {                          return date(y-m-d,$this->gettime);                          exit();                      }                  return intval($this->getyear()). 年前;                  exit();              }               if($this->getmonth() > 1)              {                  return intval($this->getmonth()). 月前;                  exit();              }               if($this->getday() > 1)              {                  return intval($this->getday()). 天前;                  exit();              }               if($this->gethours() > 1)              {                  return intval($this->gethours()). 小时前;                  exit();              }               if($this->getminutes() > 1)              {                  return intval($this->getminutes()). 分钟前;                  exit();              }             if($this->getseconds() > 1)              {                  return intval($this->getseconds()-1). 秒前;                  exit();              }         }    }  //类的使用实例  /*  *  * 调用类输出方式  *  * $a = new mygettime(time(),strtotime('-25 month'));  * echo iconv('utf-8', 'gb2312', $a->index())?iconv('utf-8', 'gb2312', $a->index()):iconv('utf-8', 'gb2312', '当前');  *  */  ```