Scribe not extracting docblocks

Scribe can use PHP docblocks for generating documentation. On a newer Laravel project this no longer worked and initially I thought it might be related to a newer version of Scribe as we didn't have that version in other projects where we were using an older version of Scribe. But a downgrade was causing conflicts, so I couldn't evaluate this. However, it seemed odd that apart from one Github issue, nobody was complaining. So that pointed towards a configuration issue, but I couldn't see anything different inside the scribe config file.

Finally, after debugging the GetFromDocBlocks strategy class, my colleague came across the fact that the getDocComment method is a PHP reflection method. This led to a Google search where we found this Stackoverflow post: https://stackoverflow.com/questions/42087433/reflectionmethod-getdoccomment-doesnt-seem-to-work-on-php-5-5

It turns out, that for this project we were using OpCache, but had the configuration opcache.save_comments set to false. After changing the setting opcache.save_comments=1 and rebuilding the Docker container, Scribe worked as expected!

This one was slightly tricky to debug and credit goes to my colleague who patiently debugged the issue with me.