How to make my script use Proxies?

I am using a script for bulk emails verification but it is doing it too slowly. Is there a code/script through which I can use proxies with that script only as I have other scripts running on the site as well which I cannot use with proxies.

You need the advice of experts and I hope you'll get good advices on this forum.
There are many experts available to help the people.

Whats the script written in? PHP, Python?