no account real time chat working

bin/server.php

@@ -10,27 +10,44 @@ use Ratchet\WebSocket\WsServer;
 
 class TestServer implements MessageComponentInterface
 {
+    private array $connectedUsers = [];
 
+    private function deleteGivenId(int $id): void
+    {
+        foreach ($this->connectedUsers as $key => $conn) {
+            if ($conn->resourceId === $id) {
+                unset($this->connectedUsers[$key]);
+                return;
+            }
+        }
+    }
     public function onOpen(ConnectionInterface $conn): void
     {
-        $conn->send('Hello World!');
+        $this->connectedUsers[] = $conn;
+        $conn->send("Connected users: " . count($this->connectedUsers));
         echo "New connection: {$conn->resourceId}\n";
     }
 
     public function onMessage(ConnectionInterface $from, $msg): void
     {
-        $from->send("You said: $msg");
+        $from->send("Resending: $msg");
+        foreach ($this->connectedUsers as $conn) {
+            if ($from->resourceId !== $conn->resourceId) {
+                $conn->send("From user " . $from->resourceId . ": " . $msg);
+            }
+        }
     }
 
     public function onClose(ConnectionInterface $conn): void
     {
+        $this->deleteGivenId($conn->resourceId);
         echo "Connection {$conn->resourceId} closed\n";
     }
 
     public function onError(ConnectionInterface $conn, \Exception $e): void
     {
         echo "Error: {$e->getMessage()}\n";
-        $conn->close();
+        $this->onClose($conn);
     }
 }