Control fetch data from mysql php

In the Friends system .. When the user opens his account, he sees what the friend published .. When the other friend has published twenty publication, Confirm twenty publication will be stored in mysql , waiting for the user to open the account until the sequence shows .. the Wanted: How to Make that ten friends publications only show in the main page .. when it updates the page I want to show other remaining Other publications such as Facebook shows. In short (showing the number of data when updating to show other amount of data (batch and batch))