Javascript: Basic User Login System
Set up a secure user login system in PHP with password hashing and session management. This guide includes secure database queries, error handling, and user feedback for optimal security.
This PHP snippet implements a basic user login system, including user authentication against a database with password hashing and session management.
The code uses prepared statements to securely query the database, preventing SQL injection attacks while verifying user credentials.
Error handling is thorough, with checks for user existence and correct password verification. It also provides feedback for login failures to enhance user experience without compromising security.
This snippet is ideal for small web applications needing a straightforward, secure user authentication mechanism.
The system can be easily expanded to include features like password recovery and multi-factor authentication as the application's needs grow.
Snippet Code
PHP Version
8.1
Use Cases
- authentication
- security
- user management