Please help us help you and fill where relevant:
Your LimeSurvey version: 6.5.4
Own server or LimeSurvey hosting: OWN
Survey theme/template: //
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Hello,
a couple of days ago I installed our first LS 6 CE. I recall having been warned about two optional PHP libraries being missing, but since they were optional I went on with the installation. Now I would like to "perfect" the installation by installing the optional PHP libraries. Is there a way to track down which they were?
Thanks a lot.
Rita

There are no way to check LimeSurvey «health», I think there are already a Feature request

Here the list

• PHP GD library : to create thumbail in kcfinder 
• PHP Intl library : for Alphabetical order of answers with specific characters
• PHP LDAP library : for LDAP Auth or LDAP token
• PHP zip library : for archiving and autoupdate, unsure LSA work without, for example.
• PHP Sodium library : for data encryption

Looking at this screen : we really need more detail on installer …
  

Thank you
Indeed, the actual list was way longer. I recall IMAP but there were more.

This is what I get


Joffm

It is that, thank you a lot