PHPCodeSniffer helps us stick to same coding standards across MediaWiki and it's extensions. Currently `RelatedArticles` phpcs config differs from the MediaWiki one - the following sniffs are disabled:
```
MediaWiki.Commenting.FunctionComment.MissingParamComment
MediaWiki.Commenting.FunctionComment.MissingParamTag
MediaWiki.Commenting.FunctionComment.ParamNameNoMatch
MediaWiki.Commenting.FunctionComment.MissingDocumentationPublic
```
Runing `phpcs` without those sniffs gives 30 errors and 1 warnings in 4 files.
== Plan (YMMV)
[] Enable sniffs one by one and send patches fixing the problems
== AC
[] As many of the sniffs are made to pass as is possible.
[] If a sniff can't be made to pass for some reason, then document it as close as possible to the line disabling the sniff.