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File: app/library/database/user_functions.php

Purpose

The code snippet provides a collection of functions for managing user data in a database. The functions allow users to create, update, and retrieve user information, as well as handle login attempts and account locking.

Key Functions

• update_user_by_id Updates a user's information based on the provided column values.
• increment_fail_count_and_time Increments the user's failed login count and sets the last failure time.
• is_lock_time_passed Checks if enough time has elapsed since the user was last locked.
• get_user_by_id Retrieves a user's information based on their user ID.
• update_user Updates a user's information based on the provided column values.
• is_start_of_turn Determines if the current time is the start of a new turn.

Database Table

The functions assume the existence of a USERS table with the following columns:

• User ID
• User Name
• First Name
• Last Name
• Email Address
• Password
• Fails Count
• Fail Time

Usage

The functions can be used to perform various tasks, such as:

• Creating a new user account.
• Logging in a user.
• Locking an account after multiple failed login attempts.
• Resetting a user's password.

Additional Notes

• The functions use prepared statements to prevent SQL injection attacks.
• The code includes error handling and rollback functionality in case of database errors.
• The generate_user_name() function is not included in the code snippet and should be implemented separately.
• The account lock time is defined by the ACCOUNT_LOCK_TIME_MINUTES constant.

Conclusion

The code snippet provides a comprehensive set of functions for managing user data in a database. The functions are well-written and secure, and they can be easily integrated into an application.