Scrutinizer Auto-Fixes

@gregorybesson requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/gregorybesson/PlaygroundGame/inspections/f488932c-1d4a-4daa-af90-86dd29fb69f5

Enabled analysis tools:
 - PHP Analyzer
 - PHP PDepend
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer