PHP instance form data Insert database and data extraction user registration verification

 When a new user registers, the website will store the user's registration information in the database, and then extract it when needed. A simple example is written today. The main completion of the following functions: (1) users to register, to achieve password duplication confirmation, Verification code proofing function. (2) After successful registration, the user is inserted into the database to save. (3) Extract the data from the database table and print it. 1. Registration form in previous blogs, share the code for registration and login forms. This time the code is roughly the same, just a slight change. Only as an example discussion