FOREACH打印其所有元素

Question

我只是希望表格显示类别名称，而不是向用户显示其ID ...所以我只是在我的控制器中添加了$ data ['category']对象

控制器代码：

select 
    v.*
from
    videos v
where 
    exists (
        select 1 
        from videos v1 
        inner join 
             video_tags vt 
        on v1.id = vt.video_id 
        where 
            v1.id = v.id 
        and vt.tag in ('a', 'b')
   )

查看代码：

$Query="group by product_image order by product_id";  
$data["products"] = $this->insert->Select('product',$Query);            
foreach ($data['products'] as $waste) {             
    $qry = "where id=".$waste->product_category;
    $cat[] = $this->insert->select('category',$qry);
}
$data['category'] = $cat;

//print_r($data["products"]);
$this->load->view('manage/product/list',$data);

此代码的输出图像=＆gt;

但我只是想向相应的行显示正确的类别。所以请帮助摆脱这个......等待可能的解决方案

Answer 1

在您的控制器代码中，您有$data["products"]。请改用$data['products']。

Answer 2

无需multiple查询:简单使用INNER JOIN。

select * from product as p inner join category as c on p.product_category=c.id