Use ExifTool to organize images by date:
exiftool -d %Y-%m-%d "-directory<datetimeoriginal" *.jpg
Asides
I’m running Ubuntu 16.04 along with PHP7.0 and was running into this error when trying to use Apache Event MPM:
Apache is running a threaded MPM, but your PHP Module is not compiled to be threadsafe. You need to recompile PHP.