phpstan

Doesn't TypeScript get compiled into JavaScript? I thought TSC actually does a compilation, hence the name, TypeScriptCompiler? But anyway, this also exists for PHP. Psalm (https://psalm.dev/) or PHPStan (https://github.com/phpstan/phpstan) both offer static type checking.

You can use static code checking tools like Vimeo/Psalm and Phpstan. These tools statically checks your code finds inconsistencies, and potential variable, class misuses. Definitely you should check stitcher.io for recent developments as well as phptherightway.com https://github.com/vimeo/psalm https://github.com/phpstan/phpstan

> 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), Phan (https://github.com/phan/phan) and 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-bug...

A lot of people can't easily leave PHP, because they work at companies that use it. Tools like [Psalm](https://psalm.dev), [Phan](https://github.com/phan/phan) and [PHPStan](https://github.com/phpstan/phpstan) have cropped up to help users deal with PHP's slight type system.

I think that the biggest win with this feature, is not that PHP will do more runtime type checks, but that the syntax is valid. The past years we've seen several static analysers become more and more popular in the PHP community. Tools like phpstan (https://github.com/phpstan/phpstan) and psalm by Vimeo (https://github.com/vimeo/psalm). Allowing this syntax is a great way to write cleaner code that can be statically analysed, which is far more superior than the runtime type checker.

https://www.exakat.io/ https://github.com/phpstan/phpstan https://github.com/phan/phan Lots of great static analyzers to run in CI and during development to catch all kinds of issues. Also, https://github.com/FriendsOfPhp/PHP-CS-Fixer to clean up code syntax (configurable rules, has good presets).

PHP Static Analysis Tool (https://github.com/phpstan/phpstan) is pretty good at surfacing that kind of thing.

Thanks for the recommendation – I've used PHPStorm when doing large refactors, and it's incredible. Unfortunately, you can't force everyone to use it (especially given its price). That's why a bunch of people have written separate PHP static analysis tools: Phan (https://github.com/phan/phan), PHPStan (https://github.com/phpstan/phpstan) and Psalm (https://github.com/vimeo/psalm), the last of which I created.