Can someone point me to the correct direction for creating widgets with php?

[pneudralics]

Example...

 

http://affiliatemarketer.info/

 

That website has a small javascript on the right side to display their latest blog postings. Someone can take that javascript and paste it on their website then it'll show what's on affiliatemarketer.info's blog posting.

 

I'm wondering how this is made and just need some directions on where to go.

 

Thanks

[rajivgonsalves]

you can have a .php file as your javascript src which would generate the content.