List Posts of different Blogs and News Pages


I’m looking for a php script that lists the posts of several news pages which I can define in the backend. It should look like feedly, but more like a bay of several news pages. It should be impossible for visitors to add/remove pages to/from the stream. The visitors should only can dismiss or show several of the pages.

Do anyone know about a php script somewhere on the internet that meets my wishes?

Thank you so much in advance,