Namespace PHPStan\Rules

An error whose existence depends on files other than the one being analysed - a path named in the code that has to exist, a data file read at analysis time. The result cache watches the files listed here and re-analyses the file the error is reported in when one of them appears, changes or is deleted, which nothing else would do: the dependency graph is built from reflected symbols, and a path is not a symbol. Paths must be absolute and are watched whether or not they exist, so an error about a missing file is cleared by that file being created.

This is the interface custom rules implement. To register it in the configuration file use the phpstan.rules.rule service tag: ``` services: - class: App\MyRule tags: - phpstan.rules.rule