Possible Duplicate:
Best way to parse RSS/Atom feeds with PHP
how I can grab and display the contents of this page?
http://www.journaltocs.ac.uk/api/articles/corrosion+metal
This is a free api, and I want to use it.
I know some xml parsing in php but I need some explanation of this page.
Is that a RSS page?
Yes, that is an RSS page.
There are lots of existing questions that you can look at for further guidance. For example:
Best way to parse RSS/Atom feeds with PHP