循环时我无法在里面创建 num 行

2021-12-26 00:00:00 while-loop php mysql-num-rows

我有拖车第一个表:对于产品第二个表:对于类别

i have tow tables first table : For products Second Table : For Categories

我想像这样在浏览器中显示

i want to show in browser like this

类别 1 (20)类别 2 (5)类别3 (3)

category1 (20) category2 (5) category3 (3)

$select_sub_cat = mysql_query("SELECT * FROM sub_cat WHERE ct_id='".$row_main['id']."' ");
while($row_sub = mysql_fetch_array($select_sub_cat))
{
  $select_num_sub = mysql_query("SELECT * FROM market WHERE sub_cat='".$row_sub['id']."' ");
  $row_num_sub = mysql_num_rows($select_num_sub);
  $smarty->assign('numb',$row_num_sub);

 $sub_cats[] = $row_sub;
}
$smarty->assign('sub_cats',$sub_cats);

推荐答案

尝试

$select_sub_cat = mysql_query("SELECT * FROM sub_cat WHERE ct_id='".$row_main['id']."' ");
while($row_sub = mysql_fetch_array($select_sub_cat))
{
  $select_num_sub = mysql_query("SELECT * FROM market WHERE sub_cat='".$row_sub['id']."' ");         
 $sub_cats[] = $row_sub;
 $sub_cats['count']=mysql_num_rows($select_num_sub);
}
$smarty->assign('sub_cats',$sub_cats);

然后打电话给你的聪明人:

and then call on your smarty :

{$sub_cats.name} ({$sub_cats.count})//$sub_cats.name 应该是类别的名称"

{$sub_cats.name} ({$sub_cats.count}) // $sub_cats.name should be 'name' of category

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