PHP / HTML Web应用程序中的全局计数器变量

Question

I am coding a web application to practice implementing MySQL databases, so I am not concerned with the "correctness" or "efficiency" of what I'm trying to do.

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Question:

The primary key for the database with User's information is the Member ID Number , but upon registering the member does not know their ID number as it should be automatically assigned. The user just has to enter their name, address, etc. to register.

The way I have it working now is just taking all the information from an input form and using that to add an entry to the MySQL table. The issue is that I need the Member ID Number, which I can't get from the user.

Is it possible to have a global counter variable that increments every time a member is registered? ie the first member is given ID 1, then 2, then 3, etc.

If so, how would I implement it? I'm comfortable with global variables and such in other programming languages but have never used PHP/HTML before.

Thanks!

Answer 1

如果您使用的是MYSQL，则可以在将ID存储为AUTOINCREMENT的表中设置列，有关如何将列设置为自动增量的更多信息，请参见此处 。