About - WebSocket Uptime Demo

About This Project

A clean PHP + browser demo for long-lived WebSocket connections

Purpose

This project demonstrates a persistent WebSocket connection where each client sees its own uptime updated every second by the server.

Features

Manual connect/reconnect/disconnect controls in the main UI.
Server-pushed per-client uptime every 10 seconds.
JSON message protocol (connected, uptime, ping, pong).
Minimal test page for quick endpoint verification.

Technology Stack

PHP (CLI sockets) WebSocket RFC6455 framing Vanilla JavaScript nginx reverse proxy WSS/TLS in production

Request Flow

Browser opens a WebSocket to /ericyanws (or a custom endpoint via query string).
Server upgrades the connection and records connected_at per client.
Every tick, the server publishes uptime messages for each active client.
Frontend updates timer and server timestamp in real time.

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