Scrutinizer Auto-Fixes

@mike182uk requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/mike182uk/cart/inspections/b803ce9c-d0ec-4b57-aedd-a24cf97fa66c

Enabled analysis tools:
 - PHP Analyzer
 - PHP CS Fixer
 - PHP Code Coverage
 - PHP Copy/Paste Detector
 - PHP PDepend