Documentation / Middleware / PingInterval

This middlewares is included in library and can be added to provide additional functionality.

• Sends Ping messages on Connection at interval, typically used as "heartbeat" to keep connection open
• If interval is not specified, it will use connection timeout configuration as interval

Note that interval typically need to be set to a lower value than core timeout configuration. This is because runner may be blocked up to timeout seconds, preventing PingInterval from running until timeout has passed.

$client_or_server->addMiddleware(new WebSocket\Middleware\PingInterval(interval: 10));