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问题描述
我用code线以下遍历一个表在我的数据库，
I use the line of code below to loop through a table in my db,
$items_thread = $connection -> fetch_all($sql);
如果我打印出数组，
And if I print the array out,
print_r($items_thread);
我会得到这个，
Array
(
[0] => Array
(
[RecipientID] => 3
[RecipientScreenname] => Tom L
[RecipientFirstname] => Thomas
[RecipientEmail] => [email protected]
)
[1] => Array
(
[RecipientID] => 3
[RecipientScreenname] => Tom L
[RecipientFirstname] => Thomas
[RecipientEmail] => [email protected]
)
[2] => Array
(
[RecipientID] => 1
[RecipientScreenname] => Lau T
[RecipientFirstname] => TK
[RecipientEmail] => [email protected]
)
)
但我想摆脱数组中的重复的项目，所以我用 array_unique
print_r(array_unique($items_thread));
我得到以下是不太我正在寻找，
I get the weird result below which is not quite I am looking for,
Array
(
[0] => Array
(
[RecipientID] => 3
[RecipientScreenname] => Tom L
[RecipientFirstname] => Thomas
[RecipientEmail] => [email protected]
)
)
在理想情况下，我认为它应该返回这一点，
Ideally, I think it should return this,
Array
(
[0] => Array
(
[RecipientID] => 3
[RecipientScreenname] => Tom L
[RecipientFirstname] => Thomas
[RecipientEmail] => [email protected]
)
[1] => Array
(
[RecipientID] => 1
[RecipientScreenname] => Lau T
[RecipientFirstname] => TK
[RecipientEmail] => [email protected]
)
)
我该怎么办得到它的权利？我已经使用了错误的PHP语法/默认功能？
What shall I do to get it right? Have I used the wrong php syntax/ default function?
感谢。
推荐答案
array_unique 功能会为你做到这一点。你只需要添加 SORT_REGULAR 标记：
$items_thread = array_unique($items_thread, SORT_REGULAR);
然而，如bren建议，如果可能的话，你应该这样做在SQL中。
However, as bren suggests, you should do this in SQL if possible.
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