phase 07: add private direct messaging

README.md

@@ -12,7 +12,7 @@ The project is currently in the **Composer foundation phase**.
 
 This means the repository already has the initial Composer package structure, PSR-4 namespace configuration, base configuration classes, PHPUnit setup, PHPStan setup, PHP CS Fixer setup, and GitHub Actions workflow.
 
-The modern WebSocket runtime is not implemented yet.
+The modern WebSocket runtime, global chat examples, callback-based MediumChat example, and first direct private chat example are now implemented.
 
 ## Installation for development
 
@@ -102,6 +102,28 @@ MediumChat demonstrates high-level callbacks such as `user.joined`, `user.left`,
 
 EasyChat and MediumChat also include typing indicators and simple message status receipts for sent, received, and read states.
 
+## Running the PrivateChat example
+
+Start the WebSocket server:
+
+```bash
+php examples/private-chat/server.php
+```
+
+Open a second terminal and start the browser UI:
+
+```bash
+php -S 127.0.0.1:8002 -t examples/private-chat/public
+```
+
+Then open:
+
+```txt
+http://127.0.0.1:8002
+```
+
+PrivateChat demonstrates global chat plus direct 1:1 private conversations. A direct message is delivered only to the sender and the selected recipient.
+
 ## Requirements
 
 The modern version targets:

examples/private-chat/README.md

@@ -0,0 +1,82 @@
+# PrivateChat Example
+
+PrivateChat is the direct messaging example for PHPSockets With WebSockets.
+
+It demonstrates:
+
+- Unique display names.
+- Online users list.
+- Global room.
+- Private direct 1:1 conversations.
+- Direct messages delivered only to the sender and the selected recipient.
+- Typing indicators for global and direct conversations.
+- Simple message receipts for sent, received and read states.
+- Safe rendering with `textContent`.
+- Plain HTML, CSS and JavaScript.
+- Bootstrap through CDN.
+
+## Requirements
+
+From the project root:
+
+```bash
+composer install
+```
+
+The PHP `sockets` extension must be enabled.
+
+## Running the WebSocket server
+
+```bash
+php examples/private-chat/server.php
+```
+
+By default:
+
+```txt
+ws://127.0.0.1:8080
+```
+
+## Running the browser UI
+
+Open a second terminal:
+
+```bash
+php -S 127.0.0.1:8002 -t examples/private-chat/public
+```
+
+Then open:
+
+```txt
+http://127.0.0.1:8002
+```
+
+## Manual test
+
+Open three browser tabs:
+
+```txt
+Tab 1: William
+Tab 2: Ana
+Tab 3: Bruno
+```
+
+Expected behavior:
+
+- All users enter with unique names.
+- All users see the online list.
+- Global messages appear for everyone.
+- William clicks Ana and sends a private message.
+- Ana receives the private message.
+- Bruno does not receive the private message.
+- Ana can reply to William.
+- Typing in the private conversation appears only for the selected recipient.
+- Message status moves from sent to received/read.
+- Duplicate names are rejected.
+- User messages are rendered safely without `innerHTML`.
+
+## Important notes
+
+This phase implements direct 1:1 private messaging.
+
+Private group rooms are implemented in the next phase.