Set Lists

Prepared Sets

You can use particular single rules, or whole list of rules, called "set lists":

<?php

use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withPreparedSets(
        deadCode: true,
        codeQuality: true,
        codingStyle: true,
        naming: true,
        privatization: true,
        typeDeclarations: true,
        rectorPreset: true,
        // ...
    );

That way you can include group of rules that focus on certain topic, e.g. in this case on dead detection. It makes config small and clear.

Try autocomplete in your IDE to see all available prepared sets.

PHP Sets

The best practise is to use PHP version defined in composer.json. Rector will automatically pick it up with empty ->withPhpSets() method:

<?php

use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withPhpSets();

Are you on a legacy project and want to upgrade set by set first? Use one by one from PHP_53 up to PHP_74:

<?php

use Rector\Config\RectorConfig;
use Rector\Set\ValueObject\SetList;

return RectorConfig::configure()
    ->withSets([SetList::PHP_73]);

If you're on PHP 8+, you can use ->withPhpSets() with named arguments:

-   ->withSets([SetList::PHP_74]);
+   ->withPhpSets(php80: true);

That way you can use all the sets that are needed to upgrade your code to the desired PHP version in single line.

Community or External Sets

How can I use Rector with community sets or my custom one?

<?php

use Rector\Config\RectorConfig;
use Rector\Doctrine\Set\DoctrineSetList;

return RectorConfig::configure()
    ->withSets([
        DoctrineSetList::DOCTRINE_CODE_QUALITY,
        __DIR__.'/config/rector-custom-set.php'
    ]);