I don't mean to discourage the OP, but it is quite involved to integrate STEEM posting into Wordpress. The reasons for
this is that you would need to either require a running cli_wallet (where unpractical) or construct and sign the
serialized transactions in PHP. I don't know how well ECDSA is implemented in PHP and whether you can easily serialize
transactions, but at least the implementation in python (python-steem is based on python-graphenelib) probably took me a
couple weeks to get it running.
Anyway, this code
shows you how the it's done in python.
If there is a PHP dev willing to develop this, I can offer my help.
I'm currently working on a graphene-php library for Bitshares, I will be glad to add a Steem module when the other part is finished.
Dose it public on github etc?
Do you mean if my graphene-php library is public on GitHub?
Yes
It is not available on GitHub since the code is for the moment pretty crapish and yet it still requires cli_wallet. It will be available by July. If you want to take a look at what is already done, please PM me on Telegram/BTSTalk.
That would be great! Will keep an eye out.