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+--- Thread: which linter to use (and how to setup)? (/showthread.php?tid=92783)
which linter to use (and how to setup)? - dilawar - 04-23-2025
Hi,
I am using codeigniter4 (first time). At work, I used laravel based project with a very good psalm support.
I am struggling to get psalm to work with ci4 -- out of box. A lot of errors are being thrown -- most of which is about missing functions and classes!
I tried tweaking settings a bit but I didn't get far.
Before I spend more time "having fun" fixing it, I was wondering if there is a tutorial/library that allows me to integrete psalm (or any other linter)?
In other words -- what is the recommended way to lint ci4 project?
best,
Dilawar
RE: which linter to use (and how to setup)? - ManceJoan - 05-18-2025
Hi Dilawar,
You're definitely not alone—Psalm can be tricky with CodeIgniter 4 due to how CI4 structures its services and uses magic methods. A lot of the missing function/class issues stem from that.
While there's no official support, some developers use PHPStan instead, since it handles dynamic code a bit better. For Psalm, you might have to create stub files or use ignoreIssueForFile pragmas to suppress false positives.
Setting a baseline with psalm --init and then selectively tweaking it has worked for some. Also, excluding the system/ folder from scanning helps reduce noise.
If you're not tied to Psalm, PHPStan with a custom config may get you linting faster with less hassle.
Hope this helps!
RE: which linter to use (and how to setup)? - paulbalandan - 05-19-2025
You can try using the bootstrap file specifically for psalm. Look at https://github.com/codeigniter4/CodeIgniter4 then check psalm_autoload.php