The main strength of PHP is the many libraries and frameworks that are based on PHP. PHP by itself is not very interesting (as B4J already offers a powerful server implementation).
Adding support for the popular PHP libraries is not really feasible.
If we are talking about web solutions then a client side (JavaScript) implementation can be more relevant.
I learnt HTML and PHP before Basic and I can tell you PHP is quite easy. Of course, to be a master of any language you need to spend much time and effort.