After reading the ZOHO API, I need some example in PHP or Ruby to start. I am trying to get invoices data. Do I need to get both API key and Ticket to get data ( https://www.zoho.com/invoice/api/index.html) ? How do I pass in parameters ? 

for example -> https://invoice.zoho.com/api/items?apikey='blahblah'&ticket='moreblah' //get all active invoices

Thanks much