菜鸟提问：关于PHP与MySQL的小问题
如图所示
本人想实现的功能就是
点多个菜品
之后选择单个包厢
之后点击提交订单
所选的选项的单价自动加和
然后把结果赋值给选择包厢的费用，也就是jiesuan
PHP代码如下
<?php/***2015-08-06*点餐系统*/FLEA::loadClass('TMIS_Controller');class Controller_Renwu_diancai extends TMIS_Controller{ ////定义全局变量 $_modelExample //var $_modelExample; function Controller_Renwu_diancai() { $this->_modelExample1=& FLEA::getSingleton('Model_Renwu_caidanguanli'); $this->_modelExample2=& FLEA::getSingleton('Model_Renwu_baoxiangguanli'); } function actiondiancai() { $this->authCheck('9-3'); $this->_edit($row); } function _edit($arr) { $title='菜品点选'; /* 执行数据库操作 */ /* 数据库查询语句 */ $sql="select * from renwu_caidanguanli where shoumaizhuangtai='出售'"; $class_info1=$this->_modelExample1->findBySql($sql); $temp= $this->_modelExample1->execute($sql); /* 显示数据 */ $smarty = & $this->_getView(); /* 后加的一句 作用不详 */ $smarty->assign('class_info1',$class_info1); /* 显示该网页模板 */ //$smarty->display("Renwu/caidanguanli.tpl"); $title='包厢点选'; /* 执行数据库操作 */ /* 数据库查询语句 */ $sql="select * from renwu_baoxiangguanli where baoxiangzhuangtai='空闲中'"; $class_info2=$this->_modelExample2->findBySql($sql); $temp= $this->_modelExample2->execute($sql); /* 显示数据 */ $smarty = & $this->_getView(); /* 后加的一句 作用不详 */ $smarty->assign('class_info2',$class_info2); /* 显示该网页模板 */ $smarty->display("Renwu/diancai.tpl"); } function actionChange(){ //根据选择菜品 $b=0; $sql="select caipindanjia from renwu_caidanguanli where id='{$_POST['isOver1']}'"; // dump($sql); //$this->_modelExample->execute($sql); $temp= $this->_modelExample1->findBySql($sql); // dump($temp);exit; $a=$temp[0]['caipindanjia']; $b=$b+$a; dump($b);exit; //临时菜品价格表 //$sql="update renwu_baoxiangguanli set jiesuan='$a' where id='{$_POST['isOver1']}'"; //$temp= $this->_modelExample1->execute($sql); $sql="update renwu_baoxiangguanli set baoxiangzhuangtai='使用中' where id='{$_POST['isOver2']}'"; //$this->_modelExample->execute($sql); $temp= $this->_modelExample2->execute($sql); //$sql="delete from renwu_caidanguanli where id='{$_POST['isDel']}'"; //$this->_modelExample->execute($sql); //$temp= $this->_modelExample->execute($sql); if($temp){ js_alert(null,"window.parent.showMsg('保存成功!')",$this->_url('diancai')); }//else die('保存失败！'); }}?>tpl代码如下
<html> <head> <tr></tr> <form action="{url controller=$smarty.get.controller action='Change'}" method="post"> </head> <body> <table cellspacing=0 bordercolordark=#FFFFFF width="90%" bordercolorlight=#000000 border=1 align="center" cellpadding="2"> <tr bgcolor="#6b8ba8" style="color:FFFFFF"> <td width="10%" align="center" valign="bottom" id="id" name="id" height="19">ID</td> <td width="20%" align="center" valign="bottom">菜品名称</td> <td width="10%" align="center" valign="bottom">菜品编号</td> <td width="10%" align="center" valign="bottom">菜品分类</td> <td width="10%" align="center" valign="bottom">菜品单价</td> <td width="10%" align="center" valign="bottom">售卖状态</td> <td width="20%" align="center" valign="bottom">选择菜品</td> </tr> {foreach from=$class_info1 item='caidanguanli'} <tr> <td align="center" height="19">{$caidanguanli.id}</td> <td align="center">{$caidanguanli.caipinmingcheng}</td> <td align="center">{$caidanguanli.caipinbianhao}</td> <td align="center">{$caidanguanli.caipinzhonglei}</td> <td align="center">{$caidanguanli.caipindanjia}</td> <td align="center">{$caidanguanli.shoumaizhuangtai}</td> <td> <input name="isOver1" type="checkbox" id="isOver1" value="{$caidanguanli.id}">点此菜品 </td> </tr> {/foreach} </table> <p>菜品一次订购，概不退换</p> <table cellspacing=0 bordercolordark=#FFFFFF width="90%" bordercolorlight=#000000 border=1 align="center" cellpadding="2"> <tr bgcolor="#6b8ba8" style="color:FFFFFF"> <td width="10%" align="center" valign="bottom" height="19">ID</td> <td width="20%" align="center" valign="bottom">包厢类型</td> <td width="10%" align="center" valign="bottom">包厢大小</td> <td width="10%" align="center" valign="bottom">包厢状态</td> <td width="20%" align="center" valign="bottom">包厢选择</td> </tr> {foreach from=$class_info2 item='baoxiangguanli'} <tr> <td align="center" height="19">{$baoxiangguanli.id}</td> <td align="center">{$baoxiangguanli.baoxiangleixing}</td> <td align="center">{$baoxiangguanli.baoxiangdaxiao}</td> <td align="center">{$baoxiangguanli.baoxiangzhuangtai}</td> <td> <input name="isOver2" type="checkbox" id="isOver2" value="{$baoxiangguanli.id}">订此包厢 </td> </tr> {/foreach} </table> <input type="submit" id="submit" name="submit" align="center" value='提交订单'> <br /> </form> </body></html>菜品数据库结构如下图
包厢数据库结构如下图
回复讨论(解决方案)
点此菜品
菜品应能多选
查询时
$sql="select caipindanjia from renwu_caidanguanli where id in (" . join(',', $_POST['isOver1']) . ")";
包厢 似应为单选钮。
复选钮也行，但是最下面的有效。容易产生纠纷
点此菜品
菜品应能多选
查询时
$sql="select caipindanjia from renwu_caidanguanli where id in (" . join(',', $_POST['isOver1']) . ")";
包厢 似应为单选钮。
复选钮也行，但是最下面的有效。容易产生纠纷
包厢已经改成单选
你说的很对
我之前没有考虑到
我尝试了您的代码
结果是随机的一个选项的单价
不是和
点此菜品
菜品应能多选
查询时
$sql="select caipindanjia from renwu_caidanguanli where id in (" . join(',', $_POST['isOver1']) . ")";
包厢 似应为单选钮。
复选钮也行，但是最下面的有效。容易产生纠纷
非常感谢
问题解决了
我用dump看了一下
发现是我自己的问题
做了一个for循环
然后就实现了
非常感谢版主大大
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