onError

Description:

callback Worker::$onError

This event is triggered when an error occurs on the client's connection.

Currently, the error types include:

Failed due to a client connection being closed when calling Connection::send (followed by triggering the onClose callback)
```
(code:WORKERMAN_SEND_FAIL msg:client closed)
```
After triggering onBufferFull (when the send buffer is full), calling Connection::send again and the send buffer is still full, resulting in a send failure (onClose callback will not be triggered)
```
(code:WORKERMAN_SEND_FAIL msg:send buffer full and drop package)
```
When the AsyncTcpConnection asynchronous connection fails (followed by triggering the onClose callback)
```
(code:WORKERMAN_CONNECT_FAIL msg:error message returned by stream_socket_client)
```

Callback function parameters

$connection

The connection object, that is, the TcpConnection instance, used to operate the client connection, such as sending data, closing the connection, etc.

$code

Error code

$msg

Error message

Example

use Workerman\Worker;
use Workerman\Connection\TcpConnection;
require_once __DIR__ . '/vendor/autoload.php';

$worker = new Worker('websocket://0.0.0.0:8484');
$worker->onError = function(TcpConnection $connection, $code, $msg)
{
    echo "error $code $msg\n";
};
// Run the worker
Worker::runAll();

Note: In addition to using anonymous functions as callbacks, other callback methods can also be referenced here.