phm Instant Messenger

This class can be used to manage users and friends that exchange messages. It can create and retrieve records in MySQL database tables that contain information of users, friends and messages that they may exchange. Currently the class implements several operations like authenticating users, change user passwords, retrieve account password reminder question and answer, create user accounts, add friends, search for friends, retrieve user nick names, add messages sent from one user to a friend, and retrieve messages received by an user.