What are the differences between synchronous and asynchronous uploading when using the phpFlickr library for Flickr API integration?

When using the phpFlickr library for Flickr API integration, synchronous uploading means that the script will wait for the upload process to complete before continuing with the rest of the code execution. On the other hand, asynchronous uploading allows the script to continue running other tasks while the upload process is happening in the background. Asynchronous uploading can be beneficial for handling large files or multiple uploads simultaneously without blocking the script execution.

// Synchronous uploading example
$result = $f->sync_upload($photo, $title, $description);

// Asynchronous uploading example
$result = $f->async_upload($photo, $title, $description);