Write a weather parser and TV program

You need to write a weather parser and TV programs from several sites at once.
Updating the data should be done at intervals of 15 minutes.
Use a regular file cache, not a database, to store data.
After the expiration date of the cache - delete the cache files.
There are 4 weather sites and 7 TV sites.
There is no binding to CMS, everything is in pure PHP, JS, HTML, CSS.
Commenting on the code is a must!
I'm not making prepayments!