I am trying to subscribe to a specific feeds(made up by google feedburner), and trying to ping the hub and publish the update.
2. I run the publish_demo.php to ping the hub and wish to get a record time in my localhost(I thought it will access callback_url)
I thought every time I run publish_example and publish updates, the hub will access to the callback_url and record the time in my localhost hello.php file.
But it seems that i was wrong about this.
To make my question clear, if i want to try out the whole process of pubsubhubbub what should I do ?