首先，我知道目前这是不正确的。我知道这一点，因为它不起作用。话虽如此，任何有助于让我更接近我想要的结果的帮助都将受到赞赏。
我有一个查询：
$query = "SELECT cat.*,
prod.title AS product,
cat1.title AS category,
(SELECT cat2.*
FROM ic_store_catalog AS cat2
WHERE cat2.parentid = cat.parentid) AS children
FROM ic_store_catalog AS cat
LEFT JOIN ic_products AS prod
ON cat.productid = prod.productid
LEFT JOIN ic_product_categories AS cat1
ON cat.categoryid = cat1.categoryid
WHERE `storeid` = $storeid
AND `column` = $column
AND `parentid` = 0
ORDER BY `the_order` ASC";
这个错误给了我：Operand should contain 1 column(s)作为问题。这存在于子选择中保证。
print_r现在，当我使用in时，我需要实现PHP的Array结构与此类似：
[0] => Array
(
[catalogID] => 165
[storeID] => 0
[categoryID] => 7
[parentID] => 0
[productID] => 4
[title] =>
[column] => 1
[the_order] => 1
[cat_order] => 1
[category] => Cookies & Brownies
[children] => Array
(
[0] => Array (
[catalogID] => 166
[storeID] => 0
[categoryID] => 8
[parentID] => 7
[productID] => 5
[the_order] => 1
[cat_order] => 1
[category] => Brownies
)
)
)
任何有助于让我更接近这个结果的帮助表示赞赏。