Well i think depends. If you are comfortable with PHP, and anything of their frameworks, go with php for backend and javascript for the frontend, i think the good thing that php have is the multiple cache systems, and some libraries or the posibility to run cronjobs in the server, i dont know if with node are these posible or whatever. For other side if you are so comfortable with javascript and ll the things you gonna do javascript can do, go with the MEAN.
Nowadays the javascript ecosystem grows so fast and i read that react is a really nice choice, for other side you can try with MERN.