phpstan.reflection

Code example

This error does not correspond to a specific PHP code pattern. It is emitted when PHPStan is unable to find the reflection of a class, function, or constant referenced in the analysed code.

Why is it reported?

PHPStan needs to resolve information about all symbols (classes, interfaces, traits, functions, constants) used in the analysed code. When a symbol cannot be found through reflection, this error is reported.

This typically happens when:

• A class, interface, or trait is not autoloadable
• A required dependency is not installed
• The autoloader configuration does not cover all necessary paths

This error is not ignorable because PHPStan cannot perform accurate analysis when it cannot resolve the types involved.

How to fix it

Make sure all symbols are autoloadable. Learn more at Discovering Symbols.

Common solutions:

1. Run composer install or composer dump-autoload to ensure the autoloader is up to date.
2. Add missing paths to the scanFiles or scanDirectories configuration options in phpstan.neon.
3. Add stub files for symbols from extensions that are not always installed.