zohobook get contact details in php code

zohobook get contact details in php code

hi Every buddy

I'm new in zohobooks api

i need to get all contact details in website through zohobook api in php code

I already have:
1) url = https://books.zoho.com/api/v3/contacts?
2) authtoken = XXXXXXX
3) organization_id = XXXXXXX

Anybody have any exmple