帮助我在 PHP 中创建标签的网站(如本网站上的标签)

本文介绍了帮助我在 PHP 中创建标签的网站(如本网站上的标签)的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

限时送ChatGPT账号..

我正在尝试学习如何在 PHP/MySQL 中创建标签.有谁知道一些有助于解释如何创建标签的好网站?

标签就像您在 stackoverflow 中提问时看到的标签一样.

解决方案

一个非常简单的例子是拥有三个表:

<前>+--------------------+ +--------------------+ +---------------------+|标签 ||问题 ||问题标签 |+--------------------+ +--------------------+ +---------------------+|+ 标签 ID ||+ 问题 ID ||+ 问题 ID |+--------------------+ +--------------------+ +---------------------+|+ 标签名 ||+ 问题标题 ||+ 标签 ID |+--------------------+ +--------------------+ +---------------------+|+ 问题文本 |+--------------------+

您可以在标签表中包含所有标签:

<前>+---+---------+|1 |PHP |+---+---------+|2 |C# |+---+---------+

问题表中的问题:

<前>+---+-------+--------------------+|1 |标签?|我如何制作标签.|+---+-------+--------------------+

然后通过它们的 ID 将它们关联到 QuestionsTags 表中:

<前>+---+---+|1 |1 |+---+---+

这会将标记 1 与问题 1 一起放置.您可以插入另一行以将另一个标记添加到问题 1.现在要获取问题的所有标记，您可以根据问题 ID 进行搜索来查询 QuestionTag 表.要获取标签的所有问题，您可以根据标签 ID 查询 QuestionTag 表.

祝你好运！

I am trying to learn how to create tags in PHP/MySQL. Does anyone know some good sites that help explain how to go about creating tags?

Tags as in the tags you see when you ask a question in stackoverflow.

解决方案

A very simple example would be to have three tables:

+---------------------+    +--------------------+    +---------------------+
| Tags                |    | Questions          |    | QuestionTags        |
+---------------------+    +--------------------+    +---------------------+
| + TagID             |    | + QuestionID       |    | + QuestionID        |
+---------------------+    +--------------------+    +---------------------+
| + TagName           |    | + QuestionTitle    |    | + TagID             |
+---------------------+    +--------------------+    +---------------------+
                           | + QuestionText     |
                           +--------------------+

You can have all of your tags within the tags table:

+---+---------+
| 1 | PHP     |
+---+---------+
| 2 | C#      |
+---+---------+

Your questions within your questions table:

+---+-------+---------------------+
| 1 | Tags? | How do I make tags. |
+---+-------+---------------------+

And then associate them in the QuestionsTags table via their ID's:

+---+---+
| 1 | 1 |
+---+---+

This places tag 1 with question 1. You can insert anther row to add another tag to question 1. Now to get all tags for a question, you query the QuestionTag table basing your search on the question ID. To get all questions for a tag, you query the QuestionTag table basing your search on the tag ID.

Good luck!

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