PHP Thruway发布变量

Question

我有这个代码。我想要做的是传递一个$d变量来发布事件，有没有办法做到这一点，以及如何使用Thruway PHP发布变量数据？

$d='123';
$connection->on('open', function (\Thruway\ClientSession $session) use ($connection) {
    //publish an event
    $session->publish('com.app.deposit', ['Hello, world from PHP!!!'], ['d'=>$d], ["acknowledge" => true])->then(
        function () use ($connection) {
            $connection->close(); //You must close the connection or this will hang
            echo "Publish Acknowledged!\n";
        },
        function ($error) {
            // publish failed
            echo "Publish Error {$error}\n";
        }
    );
  });

 $connection->open();

Answer 1

哦，明白了。只是需要用到

$connection->on('open', function (\Thruway\ClientSession $session) use ($connection,$d) {