Hi @pmginvestda6z, welcome to Thunkable! 
Be sure to check out our posts about How to ask Great Questions v2.0 and our Community Guidelines as you get started.
Just doing a quick search here of the same keywords, I found this post from not long about running a php script on a server that pulls data from a MySQL database. I would suggest starting here.
If you are wanting someone to do this for you, you can always post your request for paid work in our Freelance / Paid Help Opportunities - Community category
As for the block for setting the URL, that is part of our Web API blocks. I will link to the docs for those here:
You can also set the URL by clicking on the gear icon for the Web API you’ve added in the advanced blocks drawer and add it in there.
