facebook get lead from a form in ads

Hello,

we need to get leads from a facebook form from facebook ads, lead register on a ads and we need to have them in php to insert in our database.

You just need to send me the code with php buissness sdk

the leads have : email, phone_numer, full_name

We have access token, form_id and all authorization on facebook with a app to access lead_retrieval

thanks