UTF-8 的外键约束

发布于 2024-11-09 09:41:37 字数 607 浏览 0 评论 0原文

我最近将数据库转换为 UTF-8，本来就应该是这样。一切看起来都很好，除了当我使用该函数时，

echo mb_detect_encoding($_POST['province']);

我为所有不包含特殊字符的内容获取 ASCII，并且为包含特殊字符的所有内容获取 UTF-8。然而，这些值都是从数据库本身中提取的，所以这让我感到困惑。这是它应该如何工作的吗？

另一件不起作用的事情是我的外键约束；我无法从下拉列表中输入值，这又从数据库中提取值，所以。

当我使用时，

echo mb_detect_encoding($_POST['province']);
echo $_POST['province'];

。

UTF-8
Galápagos

由于省份表上的外键限制，我无法进入报告表下的数据库但是，该值直接来自省份表。我在这里失去了理智。

但是，我得到了

ASCII
Carchi

厄瓜多尔的另一个省份，该值直接进入数据库。我在这里做错了什么？

原文

I recently converted my database to UTF-8, which it should have been in the first place. Everything looks fine, except when I use the function

echo mb_detect_encoding($_POST['province']);

I am getting ASCII for everything that doesn't contain special characters, and I am getting UTF-8 for everything that does. However, these values are all being pulled from the database itself, so this is confusing to me. Is this how it is supposed to work?

Another thing that is not working is my foreign key constraint; I am unable to enter values from a dropdown list, which is again pulling the values from the database, so.

When I use

echo mb_detect_encoding($_POST['province']);
echo $_POST['province'];

I get

UTF-8
Galápagos

Which I cannot enter into the database under the reports table due to the foreign key restraint on the province table. However, the value coming directly from province table. I am losing my mind here.

However, I get