script type="text/javascript">
 $(function(){
 $('.agree_regi').click(function(){
  var phone = $.trim($("#phone").val());
  if(phone == ""){
  NewAlert(2,"請輸入手機號",null);
  return false;
  }else{
   var reg = /^0?1[3|4|5|8|7][0-9]\d{8}$/;
   if (!reg.test(phone)) {
    NewAlert(2,"請輸入有效的手機號碼",null);
     return false;
    }
  }
  var data ={
  phone:phone,
  };
  
  $.ajax({
  type:"POST",
  url:"{:U('Register/PhoneFind')}",
  data:data,
  success:function(msg){
   if(msg=='0'){
   NewAlert(2,"手機號有誤",null);
   }
   if(msg=='1'){
   NewAlert(2,"該手機號已經注冊，請直接登錄",null);
   }
   if(msg=='2'){
   location.href="/Register/Regowner?phone="+phone;
   }
   if(msg=='3'){
   location.href="/Register/Regnest?phone="+phone;
   } 
  }
  });
 });
 });
/script>

public function PhoneFind(){
  if(!empty(I('param.phone'))){ //I方法獲取post提交的值
   $phone = I('param.phone');
   $user = M("cuser");
   $res=$user->where(array('phone' =>$phone))->find(); //去數據庫查詢一條，并以數組返回
   if (!empty($res['password'])) {
    $status=1;//密碼存在，用戶直接登錄
   }elseif(!empty($res)){
    $status=2;//存在，沒有密碼，設置密碼，是業主
   }else{
    $status=3;//不存在，是游客，注冊
   }
  }else{
   $status=0;//手機號有誤
  }
  $this->ajaxReturn($status);         //返回狀態值給前臺
 }