contextOption) {
$context = stream_context_create($this->_contextOption);
$this->_socket = stream_socket_client$errno, $errstr, 0, STREAM_CLIENT_ASYNC_CONNECT, $context);
} else {
$this->_socket = stream_socket_clienterrstr, 0, STREAM_CLIENT_ASYNC_CONNECT);
}
} else {
var_dump(211221122121);
$this->_socket = stream_socket_client调试输出执行了这一句
```php
$this->_socket = stream_socket_client("tcp://{$this->_remoteHost}:{$this->_remotePort