如何在单个数组中同时获得两个数组，而不丢失mysql和php中的值？

我从表basic中取出了两个数组，在章节id上。其中一个数组处于章节介于1和6之间的状态。类似地，另一个数组处于相同表中章节介于7到12之间的状态

我的第一个问题在哪里

$sql1 = 'SELECT s.section_number, s.title,n.description,s.global_order_id, c.commentary FROM section as s 
                INNER JOIN note as n 
                INNER JOIN commentary as c ON s.global_order_id=n.global_order_id and c.global_order_id=n.global_order_id 
                where n.user_id='.Yii::app()->user->id.' and s.chapter_id Between 1 and 6';

第二个问题是

$sql2 = 'SELECT s.section_number, s.title,n.description,s.global_order_id, c.commentary FROM section as s 
                INNER JOIN note as n 
                INNER JOIN commentary as c ON s.global_order_id=n.global_order_id and c.global_order_id=n.global_order_id 
                where n.user_id=' . Yii::app()->user->id . ' and s.chapter_id Between 7 and 12';

都是一样的，不同的是根据章节的标题

当我进行数组合并时，只会显示一个标题，但我想将双数组变成单数组，并同时显示两个标题。我怎么做

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提前感谢…

您可以直接在MySQL中通过

UNION

（隐式区分）或

UNION ALL

这两个查询执行此操作，例如：

SELECT 
  s.section_number,  
  s.title,
  n.description,
  s.global_order_id, 
  c.commentary 
FROM section as s 
INNER JOIN note as n 
INNER JOIN commentary as c  ON s.global_order_id = n.global_order_id 
                           and c.global_order_id = n.global_order_id 
where n.user_id = '.Yii::app()->user->id.' 
  and s.chapter_id Between 1 and 6
UNION ALL
SELECT 
  s.section_number, 
  s.title,
  n.description,
  s.global_order_id, 
  c.commentary 
FROM section as s 
INNER JOIN note as n 
INNER JOIN commentary as c  ON s.global_order_id = n.global_order_id 
                           and c.global_order_id = n.global_order_id 
where n.user_id=' . Yii::app()->user->id . ' 
  and s.chapter_id Between 7 and 12;

然后仅执行此查询，您将把来自此查询的两个结果集合并到一个数组中