jquery validate 自定义验证方法介绍 日期验证

                $.ajax({
                    type:”POST”,
                    async:false,
                    url:”/default/index/ajax/do/ajaxcheckuser”,
                    data:”nick=”+user,
                    success:function(response){
                        if(response){
                            res = false;
                        }else{
                            res = true;
                        }
                    }
                });
                return res;
            },”<font color=’#E47068′>用户名已存在</font>”);

后台验证代码：

case ‘ajaxcheckuser’:
                $nick = trim($this->_getParam(‘nick’));
                if(isset($nick)){
                    $where[‘lx_user.nick = ?’] = array(‘type’=>1,’val’=>$nick);
                    $aUser = $daoUser->getUser($where);
                    if(count($aUser)>=1){
                        echo TRUE;