Okay, so I'm running a VPS with nginx, but due to some issues I'm launching PHP myself using a custom supervisord configuration (as the default one doesn't recover properly if the PHP processes crash).
Anyway, this works fine with php 5.4, and here's how it looks:
files = /home/foo/nginx/supervisor/conf.d/*.conf
Looking at the PHP 5.5 installation it seemed like simply changing "php54" to php55" would be all that needed changing, but it seems to fail for no reason, with no PHP instances being spawned and no obvious error messages in my logs, and all .php pages on my site simply returned blank.
As I say, there's no obvious error coming out of supervisord, so it seems like there should be PHP errors somewhere, but I can't find any log with some kind of error in it that I can fix.
Anyone have any ideas? I'd like to upgrade if I can, as everything I'm running should be PHP 5.5 compatible, but I'm stuck on PHP 5.4 for now.