Google Code-in

MediaWiki continuous integration now runs Phan. Phan is a static code analyser for PHP. Phan highlighted a lot of issues. Until those issues are fixed in the MediaWiki core code repository, these issues have been temporarily suppressed (so they will not be shown) in the suppress_issue_types array in Phan's config.php file.

Technical requirements:

• PHP 7+
• php-ast extension
  • For others, including Windows and building from source see upstream documentation

You are expected to

• have some basic understanding of PHP
• install Phan locally
• manually remove some issue types from the suppress_issue_types array
• run Phan locally
• check Phan's output
• fix 10-20 of the errors in the output
• submit your patch in Wikimedia Gerrit. Make sure the commit message has the line "Bug: T153252"

If you run into any problems with Phan, please ask on Phan's Discussion page on the wiki (as there will be more people seeing it than in this GCI task.)