blockchain API multi-send

[dhavin]

Can someone tell me what the maximum number of address/payment pairs are that you can send in one multi-send transaction with blockchain's API?

Is the fee 0.0001 no matter how many addresses or is it per kb? How can you estimate what the fee will be prior to sending a multi-transaction so that you can properly include it?

Does the fee come out of the wallet at the same time as the transaction as a separate amount or is it shared by the receivers somehow? The API documentation on blockchain kind of sucks..

[dhavin]

Additionally, I'm having trouble with the sendmany API call. Does anyone know when I might be able to find a working example in php to use as comparison?