Create a Live Video Chat Application Using WebRTC, PHP, JS

Install and verify composer to manage PHP dependencies, then enable global access on Linux, macOS, and Windows for building a live video chat app with WebRTC, PHP, and JS.

Set up a websocket server by creating project folders, adding server and client scripts, and wiring in documentation examples. Test connections and messages across clients to enable real-time chat.

Explore building a users table for a live video chat app, defining fields like user_id, username, email, password, profile image, session_id, and connection_id within a php admin interface.

Create a login form on the index page to sign in for video calls, using downloaded php project files and assets, with validation in the next lecture.

Learn to validate a login form in PHP by handling email and password inputs, sanitizing and escaping data, validating email format, encrypting the password, and checking user existence in database.

Define a PHP database class to connect to the database, start a session, and include the database file from the core folder, setting constants for host, database, and user data retrieval by email.

Implement a PHP method to verify a submitted email exists in the user table using a constructor, prepared statements, and a DB connection to return user data for login.

Develop a password hashing method using password_hash with Blowfish by default, saving the encrypted password, and implementing user read and login redirect logic.

Securely log in users using email verification, password hash comparison, and session ID regeneration to prevent hijacking, then redirect to the home page.

Develop PHP user methods for a live video chat app: display user data, verify login, check lock status, and manage logout and sessions with redirects.

Enable the rewrite engine in an htaccess file and rewrite non-file requests starting with data to a php handler that echoes the username for the live video chat app.

Develop the connect page for a live video chat app using WebRTC, PHP, and JS, displaying the logged-in user profile with a call button.

Create an asynchronous function to request camera and microphone access using the browser’s media devices, display the local video stream, and integrate it with a peer connection by adding tracks.

Access the user class methods in the chat class to identify the connected user and retrieve user data via the web socket, preparing to tag the token for database storage.

Create a function to generate a WebRTC offer with media info, IP address, and ICE candidates, enabling negotiation and sending the offer to establish a video call.

Create a function to check if the other user is on a call via websockets, then show caller info (profile image, username) and alert if busy, with a page reload.

Display a call pop-up to let users accept or reject the incoming call, showing the caller's username and profile image with a glass effect.

Create a function to generate an answer from a remote user by handling offers, creating and setting the local description, and exchanging sdp and ice candidates to establish a connection.

Establish a B2B peer-to-peer video chat by exchanging offers and ICE candidates to display remote and local camera feeds, handle the session description protocol, and render streams.

Create a hang up function to end the call, display a 'call disconnected' message, and integrate a timer plugin to show minutes and seconds during the video call.

Create a function to display alert popups for call events (disconnected, busy, hang up) using username and profile image, and control the popup visibility in the live video chat app.

Add video chat on the home page using WebRTC, PHP, and JS, enabling calls, checking login, and redirecting to the caller profile to display the video chat.