我一直在寻找，但在PHP中找不到解决我的问题的方法。
我有一个数组，其中包含哪些用户可以发表评论的评论。您可以看到每条评论都有一个名为“level”的值。我想要一个8个对象的平面数组，其顺序与现在显示的顺序相同。那就是“comment_id” - ＆gt; 1,2,3,8,4,5,6,7。
编辑： 所以这就是我用来构建数组的东西：
function loopThroughComments($rows = null, $row = null, $flat = false, $level){
$limit = count($rows);
for($i = 0; $i < $limit; $i++){
$rows[$i]['comments'] = loopThroughComments($rows[$i]['comments'], $row, $flat, $level++);
if($rows[$i]['comment_id'] == $row['comment_on_id']){
if($flat){
$row['level'] = $level;
}
array_push($rows[$i]['comments'], $row);
break;
}
}
return $rows;
}
现在，当$ flat == true时，我想让数组变平，但无论我尝试什么，格式都搞砸了
所以我有这个阵列：
Array
(
[0] => Array
(
[comment_id] => 1
[user_id] => 3
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 0
[comment_text] => Dit is een eerste comment
[comment_likes] => 6
[comments] => Array
(
[0] => Array
(
[comment_id] => 2
[user_id] => 4
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 1
[comment_text] => Dit is een reactie op dit ding hiero
[comment_likes] => 1
[comments] => Array
(
[0] => Array
(
[comment_id] => 3
[user_id] => 3
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 2
[comment_text] => test 123
[comment_likes] => 7
[comments] => Array
(
[0] => Array
(
[comment_id] => 8
[user_id] => 4
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 3
[comment_text] => level 2 comment
[comment_likes] => 7
[comments] => Array
(
)
[level] => 3
)
)
[level] => 2
)
[1] => Array
(
[comment_id] => 4
[user_id] => 3
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 2
[comment_text] => test 9999
[comment_likes] => 0
[comments] => Array
(
)
[level] => 2
)
[2] => Array
(
[comment_id] => 5
[user_id] => 3
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 2
[comment_text] => test 0000
[comment_likes] => 0
[comments] => Array
(
)
[level] => 2
)
)
[level] => 1
)
[1] => Array
(
[comment_id] => 6
[user_id] => 3
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 1
[comment_text] => test 555
[comment_likes] => 1
[comments] => Array
(
)
[level] => 1
)
)
[level] => 0
)
[1] => Array
(
[comment_id] => 7
[user_id] => 3
[article_id] => 1345da9bae3e3bb436626422006abe04748432b9
[comment_on_id] => 0
[comment_text] => dit is een tweede comment
[comment_likes] => 1
[comments] => Array
(
)
[level] => 0
)
)
答案 0 :(得分：0)
此代码应该有效：
<?php
$result = array();
$arr = $arr[0];
while (is_array($arr['comments']) {
$el = $arr;
unset($el['comments']);
$result[] = $el;
if (isset($arr['comments'])) {
$arr = $arr['comments'];
}
else {
break;
}
}
你没有用PHP提供数据，所以我无法测试它。 但是这段代码绝对不是最佳的。
如果您确定数组中的字段，我强烈建议您更改行：
$el = $arr;
unset($el['comments']);
$result[] = $el;
到
$el['comment_id'] = $arr['comment_id'];
$el['user_id'] = $arr['user_id'];
// and so on until
$el['comment_likes'] = $arr['comment_likes'];
另一种解决方案是创建额外的循环，但在您的情况下，此解决方案应该足够了。