Gravity Forms Integration to CRM

I am looking for help on how to integrate Gravity forms entries to automatically be sent to my CRM. i assume i use the gf_after_submission hook. Has anyone done this before? This is some code i received from a developer from insidesales.com but i’m not sure how to make it work in WordPress with Gravity Forms.

[Code moderated as per the Forum Rules. Please use the pastebin]