WordPress How to fetch Text and Images from a URL

WordPress How to fetch Text and Images from a URL

I'm trying to extract data (text) from an external site and put it on my
wordpress site. I want to show the Article Heading, Thumbnail Image and
few text from the URL. It has to be like in Facebook post, where it fetch
the details from a url and show it in the post.
I searched from many sites but still I could not get any clues. can you
please provide me a better code.