While fixing CS violations in planet4-master-theme, there were too much issues in https://github.com/greenpeace/planet4-master-theme/blob/329d660d1817200c9d6dcc4e2f0856cafccda481/exporter.php to take along in what was already a big PR touching many files. These issues include CS violations but also inaccurate naming, some performance issues, and a too complex structure, making the code hard to maintain and build upon.

Tasks

• Fix issues to make sure it passes phpCS standards
• Identify areas were code can be improved so thats is easier to maintain