Question

Need to push json data to Multichain, in php

Answer 1

Go through the 'Getting Started' tutorial and see the form of the JSON-RPC request for publishing an item (this is output on the command line when you run multichain-cli).

Assuming you're using MultiChain 2.0 alpha, you need to replace the hexadecimal data in that example with this structure:

{"json":null}

Replace the null in that with the JSON you want to embed. This function might help you:

http://php.net/manual/en/function.json-encode.php