Hello everyone
I want to develope a tool to check addresses balannce not one or two more than 1000 and
in a nice time . Can i do it with json-rpc and php ?
Yes, you can.
Just listen network for new blocks, retrieve information from them, parse transactions and update balances in your own SQL database.
You can have up-to-date balances for all 50 millions (I do not know the exact number) addresses ever existed in blockchain.
Not very difficult. But has no sense.