@nickvergessen @rullzer I would say, that we should first get this in and then have followup PRs that add the strict typing to subtrees of our code.

Or should we already add lib/ already in this PR?

Do we need to add it to each file?

Do we need to add it to each file?

Yes.

I shall run my other script than to update the php testing versions in travis.yml for all apps on master I guess 🙊

Do we need to add it to each file?

There is a PHPStorm inspection for this: https://stackoverflow.com/a/43281565/520507

I shall run my other script than to update the php testing versions in travis.yml for all apps on master I guess 🙊

Added here: #7808 (comment)

Codecov Report

Merging #7392 into master will decrease coverage by 45.44%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master   #7392       +/-   ##
============================================
- Coverage     52.07%   6.63%   -45.45%     
+ Complexity    25984   25347      -637     
============================================
  Files          1651    1607       -44     
  Lines         95983   95315      -668     
  Branches       1290    1394      +104     
============================================
- Hits          49983    6324    -43659     
- Misses        46000   88991    +42991

Nothing for 14 it seems -> moved to 15

It's an ongoing improvement ;)