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/d365f6b2-4a70-4bdc-8478-1a1703f56d35

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