非常令人沮丧的一刻，无法弄清楚，最后决定搬家，向Geeks询问解决方案。
好的，这是问题所在。
我有以下数组，需要通过替换array中的重复记录进行转换，合并如下所示。
Array
(
[0] => Array
(
[Index] => Array
(
[id] => 2
[content] => content 2
[user_id] => 1
[page_number] => 25
[book_id] => 1
[tag_id] => 3,2,4
[need_review] => no
[status] => active
[created] => 2013-06-27 12:36:45
[modified] => 2013-06-27 12:36:45
)
[Tag] => Array
(
[id] => 3
[name] => three
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:32:13
[modified] => 2013-06-27 12:32:13
)
[Book] => Array
(
[id] => 1
[name] => Book 1
[description] => book one
[ordervalue] => 0
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:22:26
[modified] => 2013-06-27 12:22:26
)
)
[1] => Array
(
[Index] => Array
(
[id] => 2
[content] => content 2
[user_id] => 1
[page_number] => 25
[book_id] => 1
[tag_id] => 3,2,4
[need_review] => no
[status] => active
[created] => 2013-06-27 12:36:45
[modified] => 2013-06-27 12:36:45
)
[Tag] => Array
(
[id] => 2
[name] => two
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:31:58
[modified] => 2013-06-27 12:31:58
)
[Book] => Array
(
[id] => 1
[name] => book 1
[description] => book one
[ordervalue] => 0
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:22:26
[modified] => 2013-06-27 12:22:26
)
)
[2] => Array
(
[Index] => Array
(
[id] => 1
[content] => content1
[user_id] => 1
[page_number] => 10
[book_id] => 2
[tag_id] => 1,2,3
[need_review] => no
[status] => active
[created] => 2013-06-27 12:32:17
[modified] => 2013-06-27 12:32:17
)
[Tag] => Array
(
[id] => 3
[name] => three
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:32:13
[modified] => 2013-06-27 12:32:13
)
[Book] => Array
(
[id] => 2
[name] => book2
[description] => book two
[ordervalue] => 2
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:24:04
[modified] => 2013-06-27 12:24:04
)
)
[3] => Array
(
[Index] => Array
(
[id] => 1
[content] => content1
[user_id] => 1
[page_number] => 10
[book_id] => 2
[tag_id] => 1,2,3
[need_review] => no
[status] => active
[created] => 2013-06-27 12:32:17
[modified] => 2013-06-27 12:32:17
)
[Tag] => Array
(
[id] => 2
[name] => two
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:31:58
[modified] => 2013-06-27 12:31:58
)
[Book] => Array
(
[id] => 2
[name] => book2
[description] => book two
[ordervalue] => 2
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:24:04
[modified] => 2013-06-27 12:24:04
)
)
)
我想将此数组转换为以下内容。
Array
(
[0] => Array
(
'Tag' => Array
(
[id] => 2
[name] => two
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:31:58
[modified] => 2013-06-27 12:31:58,
[Book] => Array
(
[id] => 2
[name] => book2
[description] => book two
[ordervalue] => 2
[user_id] => 1
[status] => active
[created] => 2013-06-27 12:24:04
[modified] => 2013-06-27 12:24:04
[Index] => Array
(
'0' => Array
(
[id] => 1
[content] => content1
[user_id] => 1
[page_number] => 10
[book_id] => 2
[tag_id] => 1,2,3
[need_review] => no
[status] => active
[created] => 2013-06-27 12:32:17
[modified] => 2013-06-27 12:32:17
),
'1' => Array
(
[id] => 2
[content] => content 2
[user_id] => 1
[page_number] => 25
[book_id] => 1
[tag_id] => 3,2,4
[need_review] => no
[status] => active
[created] => 2013-06-27 12:36:45
[modified] => 2013-06-27 12:36:45
)
)
)
)
)
)
等等。
我尝试了什么？
$newindexes = array();
for( $i = 0; $i < count($indexes);$i++ )
{
$newindexes[$i]['Book'] = $indexes[$i]['Book'];
$newindexes[$i]['Book']['Index'] = array();
for( $k = 0; $k < count($indexes);$k++ )
{
if($indexes[$i]['Book']['id'] == $indexes[$k]['Book']['id'])
{
$newindexes[$i]['Book']['Index'][] = $indexes[$k]['Index'];
}
}
}
并在末尾添加了$newindexes = array_map("unserialize", array_unique(array_map("serialize", $newindexes)));以删除重复但仍无法正常工作。
花了将近4-5个小时，但无法理解。
请大家看看我的代码中给我一些更正，或者给我一个有用的链接。
非常感谢。
答案 0 :(得分：1)
如果所有标记ID，书籍ID和索引ID都是唯一的，那么我会根据您的要求给出一个不太健壮的答案：
foreach($indexes as $index){
$tagid = (int) $index['Tag']['id'];
$bookid = (int) $index['Book']['id'];
$indexid = (int) $index['Index']['id'];
if(!isset($newindexes[$tagid])) {
$newindexes[$tagid]['Tag'] = $index['Tag'];
}
if(!isset($newindexes[$tagid]['Tag']['Book']) || !isset($newindexes[$tagid]['Tag']['Book'][$bookid])) {
$newindexes[$tagid]['Tag']['Book'][$bookid] = $index['Book'];
}
if(!isset($newindexes[$tagid]['Tag']['Book'][$bookid]['Index']) || !isset($newindexes[$tagid]['Tag']['Book'][$bookid]['Index'][$indexid])) {
$newindexes[$tagid]['Tag']['Book'][$bookid]['Index'][$indexid] = $index['Index'];
}
}