ajax 实时验证

发布时间：2018-12-27 14:53:38 修改时间：2018-12-27 14:53:38 阅读：4208 评论：0 0

1、       Html 表单部分

<form name="registerForm" id="registerForm"method="post" onsubmit="onQuermm()" >

<span class="cell_input"><input type="text"name="name[]" id="username" 

maxlength="16"class="input_txt" placeholder="用户名"></span>

</form>

2、       js部分

<script src="__PUBLIC__/reg/image/jquery.js" type="text/javascript"charset="utf-8"></script>

<script type="text/javascript">

            $(function () {

       varURL="<{:U('reg/cfname')}>";

               $("#username").bind("blur", function () {             

                    $.ajax({

                        url:URL,

                       data:"name="+$(this).val(),

                        type:"post",

             dataType: 'text',

                        success: function(data) {

                           if(data=="1"){

                                    alert("该用户名卖没了")

                                    }else{alert("用户名可用")}

                        }

                   

                    });

                })

            });

        </script>

3、        thinkphp代码

 public function cfname(){

$user=M('Cpy'); 

$where['name']=I('post.name');

//$this->ajaxReturn($where);

//die;

$list=$user->where($where)->find();

if(!$list){

       $data=M('Ywy');

       $list1=$data->where($where)->find();

       if(!$list1){

                $ret=0;

                $this->ajaxReturn($ret);             

             }

             else{

                  $ret=1;

                   $this->ajaxReturn($ret);

                   }   

       }

       else{

                   $ret=1;

                $this->ajaxReturn($ret);

             }

  }

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