Need help with auto clear cache

[raunhar]

I am looking for a solution (free solution would be better) , by which the Cache gets Empty , after a particular interval.

I tried the script provided at:

https://prestacraft.com/programmatically-cache-clearing-in-prestashop/#comment-172

but I donot think, it is working as when I try to run it manually, it gives 404 error.

Please suggest