這段簽到代碼有問題嗎

check_login();                $m_time=$this->getMillisecond();        $con['si_time']=array('gt',date('Y-m-d'));                $ranking=M('sign')->where($con)->count();                if($ranking){                    $haha=intval($ranking);                    switch ($haha){                        case 1:                          $pm=5;//給5塊                          $row=2;                          $ch="亞軍";                          break;                        case 2:                          $pm=3;//給兩塊                          $row=2;                          $ch="季軍";                          break;                        default:                          $pm=0;                        }                }else{                    $pm=10;//給10塊贈金券                    $row=1;                    $ch="冠軍";                }                if($pm>0){                    $this->insertGiveCoupon($this->memberID,$pm);                    $memo="
您是今天的簽到{$ch},成功領取{$pm}贈金券";                }        $dao=M('sign');//執行個體化sign對象        $current=date('Y-m-d H:i:s',time());        $hasSign=$dao->where("userId={$this->memberID}")->find();        $count=$hasSign['si_count'];                //尋找會員名        $member=M('Members');        $where['id']=$this->memberID;        $memberName=$member->where($where)->field('name')->find();        //$this->membername=$memberName['name'];                        $this->uid=$this->memberID;        //如果執行成功        if($hasSign){            $lastSignDay=strtotime("{$hasSign['si_time']}");            $lastSign=date('Y-m-d',$lastSignDay);            $today=date('Y-m-d',time());             if($lastSign==$today){                //echo "今天已簽到,您已連續簽到  {$count}  天,連續簽到5天每天+5元代金券!";                $this->ajaxReturn('', "今天已簽到!", 0);exit();            }                             $residueHour=24+24-date('H',$lastSignDay); //有效簽到時間  (簽到當天剩餘的小時+1天的時間)            $formatHour=strtotime(date('Y-m-d H',$lastSignDay).':00:00');//簽到當天 2014-12-07 18:00:00            $lastSignDate=strtotime("+{$residueHour}hour",$formatHour);//在2014-12-07 18:00:00 基礎上+ 有效簽到時間            if(time()>$lastSignDate){ //目前時間 >  上一次簽到時間                $count=1;              }else{                $count=$count+1;            }            $sign=$dao->where("userId={$this->memberID}")->save(array('si_time'=>$current,'si_count'=>$count,'m_second'=>$m_time)); //簽到表        }else{            $sign=$dao->add(array('userId'=>$this->memberID,'si_count'=>1,'si_time'=>$current,'m_second'=>$m_time)); //簽到表            $count=1;        }        if($sign){                                            //第一天簽到+1 第二天簽到+2 第三天簽到+3 第四天簽到+4 第五天+5 連續5天每天+5            switch ($count){                case 1:                  $sc_score=1;                  break;                case 2:                  $sc_score=2;                  break;                case 3:                  $sc_score=3;                  break;                case 4:                  $sc_score=4;                  break;                default:                  $sc_score=5;                }                                                $dao->where("userId={$this->memberID}")->setInc('coin',$sc_score);  //簽到金額累加                $coin=$dao->where("userId={$this->memberID}")->field('coin')->find();                if($coin['coin']>=20){                    $dao->where("userId={$this->memberID}")->setDec('coin',20);//如果滿20將產生一張20的代金券                    $this->insertCoupon('會員簽到代金券',20,$this->memberID);                }                $data=array(                'userId'=>$this->memberID,                    'sc_score'=>$sc_score,                    'sc_detail'=>'簽到+'.$sc_score,                    'sc_type'=>1                    );                        M('score')->add($data); //積分表                                    if($count>0){               $this->ajaxReturn('', "簽到成功！您已簽到，成功領取{$sc_score}元代金券！{$memo}", 1);exit();            }else{               $this->ajaxReturn('', "您已簽到！", 1);exit();            }                }else{            $this->ajaxReturn('', "簽到失敗,請稍後重試！", 0);exit();        }            }    //私人方法，產生代金券    private function insertCoupon($name,$amount,$mid){                            $data['name']=trim($name);                    $data['amount']=$amount;                    $data['coupon'] = array();                    $data['coupon']=md5(uniqid(md5(microtime(true)),true));                    $data['start_time']=time();                    $data['expire_time']=strtotime("+2 year");                    $data['dateline']=time();                    $data['status']=1;                    $data['user_id']=$mid;                                        M('coupon')->add($data);    }//私人方法，產生贈金券        private function insertGiveCoupon($mid,$amount){            $map['user_id']=$mid;            $map['status']=1;            $res=M('givecoupon')->where($map)->find();            if($res){                M('givecoupon')->where($map)->setInc('amount',$amount);            }else{                                    $data['name']='贈金券';                    $data['amount']=$amount;                    $data['coupon'] = array();                    $data['coupon']=md5(uniqid(md5(microtime(true)),true));                    $data['start_time']=time();                    $data['expire_time']=strtotime("next year");                    $data['dateline']=time();                    $data['status']=1;                    $data['user_id']=$mid;                    M('givecoupon')->add($data);            }                        }

回複內容：

check_login();                $m_time=$this->getMillisecond();        $con['si_time']=array('gt',date('Y-m-d'));                $ranking=M('sign')->where($con)->count();                if($ranking){                    $haha=intval($ranking);                    switch ($haha){                        case 1:                          $pm=5;//給5塊                          $row=2;                          $ch="亞軍";                          break;                        case 2:                          $pm=3;//給兩塊                          $row=2;                          $ch="季軍";                          break;                        default:                          $pm=0;                        }                }else{                    $pm=10;//給10塊贈金券                    $row=1;                    $ch="冠軍";                }                if($pm>0){                    $this->insertGiveCoupon($this->memberID,$pm);                    $memo="
您是今天的簽到{$ch},成功領取{$pm}贈金券";                }        $dao=M('sign');//執行個體化sign對象        $current=date('Y-m-d H:i:s',time());        $hasSign=$dao->where("userId={$this->memberID}")->find();        $count=$hasSign['si_count'];                //尋找會員名        $member=M('Members');        $where['id']=$this->memberID;        $memberName=$member->where($where)->field('name')->find();        //$this->membername=$memberName['name'];                        $this->uid=$this->memberID;        //如果執行成功        if($hasSign){            $lastSignDay=strtotime("{$hasSign['si_time']}");            $lastSign=date('Y-m-d',$lastSignDay);            $today=date('Y-m-d',time());             if($lastSign==$today){                //echo "今天已簽到,您已連續簽到  {$count}  天,連續簽到5天每天+5元代金券!";                $this->ajaxReturn('', "今天已簽到!", 0);exit();            }                             $residueHour=24+24-date('H',$lastSignDay); //有效簽到時間  (簽到當天剩餘的小時+1天的時間)            $formatHour=strtotime(date('Y-m-d H',$lastSignDay).':00:00');//簽到當天 2014-12-07 18:00:00            $lastSignDate=strtotime("+{$residueHour}hour",$formatHour);//在2014-12-07 18:00:00 基礎上+ 有效簽到時間            if(time()>$lastSignDate){ //目前時間 >  上一次簽到時間                $count=1;              }else{                $count=$count+1;            }            $sign=$dao->where("userId={$this->memberID}")->save(array('si_time'=>$current,'si_count'=>$count,'m_second'=>$m_time)); //簽到表        }else{            $sign=$dao->add(array('userId'=>$this->memberID,'si_count'=>1,'si_time'=>$current,'m_second'=>$m_time)); //簽到表            $count=1;        }        if($sign){                                            //第一天簽到+1 第二天簽到+2 第三天簽到+3 第四天簽到+4 第五天+5 連續5天每天+5            switch ($count){                case 1:                  $sc_score=1;                  break;                case 2:                  $sc_score=2;                  break;                case 3:                  $sc_score=3;                  break;                case 4:                  $sc_score=4;                  break;                default:                  $sc_score=5;                }                                                $dao->where("userId={$this->memberID}")->setInc('coin',$sc_score);  //簽到金額累加                $coin=$dao->where("userId={$this->memberID}")->field('coin')->find();                if($coin['coin']>=20){                    $dao->where("userId={$this->memberID}")->setDec('coin',20);//如果滿20將產生一張20的代金券                    $this->insertCoupon('會員簽到代金券',20,$this->memberID);                }                $data=array(                'userId'=>$this->memberID,                    'sc_score'=>$sc_score,                    'sc_detail'=>'簽到+'.$sc_score,                    'sc_type'=>1                    );                        M('score')->add($data); //積分表                                    if($count>0){               $this->ajaxReturn('', "簽到成功！您已簽到，成功領取{$sc_score}元代金券！{$memo}", 1);exit();            }else{               $this->ajaxReturn('', "您已簽到！", 1);exit();            }                }else{            $this->ajaxReturn('', "簽到失敗,請稍後重試！", 0);exit();        }            }    //私人方法，產生代金券    private function insertCoupon($name,$amount,$mid){                            $data['name']=trim($name);                    $data['amount']=$amount;                    $data['coupon'] = array();                    $data['coupon']=md5(uniqid(md5(microtime(true)),true));                    $data['start_time']=time();                    $data['expire_time']=strtotime("+2 year");                    $data['dateline']=time();                    $data['status']=1;                    $data['user_id']=$mid;                                        M('coupon')->add($data);    }//私人方法，產生贈金券        private function insertGiveCoupon($mid,$amount){            $map['user_id']=$mid;            $map['status']=1;            $res=M('givecoupon')->where($map)->find();            if($res){                M('givecoupon')->where($map)->setInc('amount',$amount);            }else{                                    $data['name']='贈金券';                    $data['amount']=$amount;                    $data['coupon'] = array();                    $data['coupon']=md5(uniqid(md5(microtime(true)),true));                    $data['start_time']=time();                    $data['expire_time']=strtotime("next year");                    $data['dateline']=time();                    $data['status']=1;                    $data['user_id']=$mid;                    M('givecoupon')->add($data);            }                        }

樓主代碼都沒有貼全！
而且就算貼全了，你這變數名稱估計大家也懶得看！

