In what scenarios would using usleep() to introduce a delay after socket_write() be a suitable solution, and are there alternative methods to address the issue?

When using socket_write() to send data over a socket connection, it may be necessary to introduce a delay before closing the socket to ensure that all data is successfully transmitted. In such scenarios, using usleep() to introduce a delay after socket_write() can be a suitable solution. An alternative method to address the issue could be to check the return value of socket_write() and only close the socket after all data has been successfully sent.

// Send data over a socket connection
$bytesWritten = socket_write($socket, $data, strlen($data));

// Introduce a delay using usleep() after sending data
if($bytesWritten !== false){
    usleep(100000); // Delay for 100 milliseconds
}

// Close the socket connection
socket_close($socket);