I would highly recommend http://phpfui.com for this. Runs as a PHP script right on your server. Will produce static files if you need them for high volume sites. Easy to install and set up. Maybe 2 minutes to usable documentation for your code and all the third party code you use in your app.
Give our app a try - Jitbit Helpdesk.
We support various SSO methods - from Google Login to custom SAML providers (Azure AD for example)
Email-based is our primary focus.
We have a feature called Ideas Forum (you can rename it in settings). It is basically a forum where users can talk to each other, ask questions and make suggestions.
You can put ...