README

import-layers-php is a library to check if imports are correctly layered

in other words - check that higher layer packages do not depend on lower layer packages (dependency rule from clean architecture)

see also version for golang projects

example

config

{
    "layers": [
        "high",
        "low"
    ]
}

php

<?php

declare(strict_types=1);

namespace Tests\testdata\Unit\Analyzer\AnalyzerTest\HighUsesLow\High;

// returns error: `cannot import package from lower layer`
use Tests\testdata\Unit\Analyzer\AnalyzerTest\HighUsesLow\Low\Low; 

final readonly class High
{
    public const string A = 'a';

    public function do()
    {
        return Low::A; 
    }
}

running in your repo

download bin from releases and place it in analyzers for example
run

./analyzers/import-layers-php

config

See example config in import_layers.json
Config file must be in the same directory as a composer.json file.
It must be named import_layers.json.
Config file name and location are not configurable.