效果图:

 

 前端页面:

           <div class="contact-right">
                    <h2>合作意向表/ <span>COOPERATION INTENTION FORM</span></h2>
                    <form id="contact-form" action="/message2/add" method="POST" role="form">
                        <div class="form-group">
                            <input type="text" class="form-control" id="company" placeholder="公司名称" name="company" required>
                        </div>
                        <div class="form-group">
                            <input type="text" class="form-name" id="name" placeholder="姓名" name="name" required>
                            <input type="tel" class="form-iphone" id="tel" placeholder="电话" name="tel" required>
                        </div>
    
                        <div class="contact-hope">
                            <h2>您希望我们为您提供什么服务?</h2>
                        </div>
    
                        <div class="duoxuan">
                            <div class="check">
                                <input type="checkbox" name="service[]" value="APP开发及解决方案">
                                <p>APP开发及解决方案</p>
                            </div>
                            <div class="check">
                                <input type="checkbox" name="service[]" value="网站建设与维护">
                                <p>网站建设与维护</p>
                            </div>
                            <div class="check">
                                <input type="checkbox" name="service[]" value="微信小程序开发">
                                <p>微信小程序开发</p>
                            </div>
                            <div class="check">
                                <input type="checkbox" name="service[]" value="企业设计包年服务">
                                <p>企业设计包年服务</p>
                            </div>
                            <div class="check">
                                <input type="checkbox" name="service[]" value="品牌策划VI视觉">
                                <p>品牌策划VI视觉</p>
                            </div>
                            <div class="check">
                                <input type="checkbox" name="service[]" value="系统开发">
                                <p>系统开发&nbsp; </p>
                            </div>
                        </div>

                        <div id="tipscont" style="height:25px; color:red;"></div>
                        <div class="sumbit">
                            <button type="submit">提交需求</button>
                        </div>
                    </form>
                </div>

后台处理:(表单中action跳转的后台处理 

/message2/add

    public function add()
    {
        $data = [];
        $data['company'] = I('company');
        $data['name'] = I('name');
        $data['tel'] = I('tel');

        // 服务内容
        $data['services'] = "";
        $service_list = I('service');
        if ($service_list) {
            $data['services'] = implode(', ', $service_list);
        }

        $data['ip'] = get_client_ip();

        $cont = "公司名称:{$_POST['company']} \n\r";
        $cont .= "姓名:{$_POST['name']} \n\r";
        $cont .= "电话:{$_POST['tel']} \n\r";
        $cont .= "我们的服务:{$data['services']} \n\r";

       $res = think_send_mail('xx@qq.com', '您有新消息', '您有新消息', $cont);


        // echo json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);

        $model = M('Message2');
        if ($model->add($data) === false) {
            $err_msg = $model->getError();
            $err_msg = $err_msg ? $err_msg : '未知错误';
            $res = [
                'ok' => false,
                'msg' => $err_msg
            ];
        } else {
            $res = [
                'ok' => true,
                'msg' => '留言已经提交到后台,请耐心等待'
            ];
        }

        echo json_encode($res, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
    }

数据表的设计:

CREATE TABLE `o_message2` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `company` varchar(255) DEFAULT NULL COMMENT '公司',
  `name` varchar(255) DEFAULT NULL COMMENT '姓名',
  `tel` varchar(255) DEFAULT NULL COMMENT '电话',
  `services` varchar(1024) DEFAULT NULL COMMENT '服务',
  `created_at` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '日期',
  `ip` varchar(255) DEFAULT NULL COMMENT 'IP地址',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

  最后,后台效果: