# maxSendBufferSize ## 说明: ```php int Connection::$maxSendBufferSize ``` 此属性用来设置当前连接的应用层发送缓冲区大小。不设置默认为```Connection::$defaultMaxSendBufferSize```(1MB)。```Connection::$maxSendBufferSize`和`Connection::$defaultMaxSendBufferSize```均可以动态设置。 此属性影响onBufferFull回调 ## 范例 ```php use Workerman\Worker; use Workerman\Connection\TcpConnection; require_once __DIR__ . '/Workerman/Autoloader.php'; $worker = new Worker('websocket://0.0.0.0:8484'); $worker->onConnect = function($connection) { // 设置当前连接的应用层发送缓冲区大小为102400字节 $connection->maxSendBufferSize = 102400; }; // 运行worker Worker::runAll(); ```