> until you get arrays which can take anything There's a widely-used PHPDoc standard for annotating arrays: `Foo[]`, and there are at least three PHP static an

> until you get arrays which can take anything There's a widely-used PHPDoc standard for annotating arrays: `Foo[]`, and there are at least three PHP static analysis tools that can correctly interpret those annotations: Psalm (https://psalm.dev https://psalm.dev), Phan (https://github.com/phan/phan https://github.com/phan/phan) and PHPStan (https://github.com/phpstan/phpstan https://github.com/phpstan/phpstan). Phan and Psalm also support a docblock syntax for generics - I wrote about it here: https://medium.com/vimeo-engineering-blog/uncovering-php-bugs-with-template-a4ca46eb9aeb https://medium.com/vimeo-engineering-blog/uncovering-php-bug...