How to handle user login and authentication in PHP?
User login and authentication are one of the essential features in modern Internet applications. By authenticating users, we can protect the security of their information and the security of our applications. In PHP, handling user login and authentication is not complicated, but there are some key steps and techniques to pay attention to. This article will introduce some common methods and techniques to handle user login and authentication.
1. Implementation of user login function
User login usually requires a database to store user information, including user name and password. . In PHP, we can use MySQL or other databases to store user information.
First, create a database table named "users", including two fields: username and password. Store the user's username and password in the database for subsequent authentication.
In the application's page, create a login form with two input fields: username and password. Create a form and submit it to the server through the HTML