Well, I dont know. It will all come down to cost,and the ability to manage CMSs on Heroku, I think. Something like Wordpress is in my opinion not built for rea

Well, I dont know. It will all come down to cost,and the ability to manage CMSs on Heroku, I think. Something like Wordpress is in my opinion not built for readonly paas,more for classic/upload with FTP workflow. And Heroku IS expensive while being very easy to use when one think his app as readonly backed up by cdns and databases. I deployed a few Symfony projects on Heroku,it works well. But why choose PHP when I can choose my entire stack since not limited by host restrictions? It's an interesting experiment nevertheless.