Scrutinizer Auto-Fixes

@Kyoshim requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/Kyoshim/POO_2_PSR/inspections/5cc15a37-6278-4c2d-96fb-300859bba75d

Enabled analysis tools:
 - PHP Analyzer
 - PHP Mess Detector
 - PHP Code Sniffer
 - PHP CS Fixer
 - Security Advisory Checker
 - PHP PDepend
 - External Code Coverage
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer