php second password rpc.blockchain.info request

[rescueme]

Hello,
I am writing this because I not know how can make for that a request in rpc.blockchain.info, whith second password, has sucessfull.

This request can be the next : signmessage, getnewaddress, validateaddress, sendtoaddress... for they is need use a second password and I not know how use it. I only use with one password. Can you help me please?

[kjj]

Check the wallet locking/unlocking functions.