是否可以使用PDO从2个表加载数据并将第二个表数据设置为第一个表的子数组?例如:
表格:
article (id, title, description)
links (id, article_id, link)
加载数据〜:
stdClass Object
(
[article.id] => 1
[article.title] => bla bla
[article.description] => example description
[article.links] => array (
[0] => array (
links.id => 1
links.article_id => 1
links.link => .......
)
[1] => array (
links.id => 2
links.article_id => 1
links.link => .......
)
)
)
解决方法:
我不确定这段代码的效率如何,但是您可以使用group_concat和concat mysql函数的组合将数据从子查询中获取到一行/列,然后您可以将其重新放回到PHP中的数组中.
select
id,
title,
group_concat(concat(b.ID, '@@', b.link)) as linkies
from
article a
right outer join links b
on b.article_id=a.ID
group by
id,
title
这将导致您的PDO结果中出现类似这样的内容:
ID | Title | linkies
1 | bla bla | 1@@yourLink, 2@@SomeOtherLink
2 | ble ble | 1@@yourLinkRow2, 2@@SomeOtherLinkAgain
一旦进入PHP,这将很容易重新进入数组.