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TomasVotruba merged 1 commit into from
Dec 8, 2025
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doc php levels #3496

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24 changes: 21 additions & 3 deletions resources/docs/levels.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
What is a PHP 8.3 project without a single type declaration?

A horse with Tesla bodywork.
> "What is a PHP 8.4 project without a single type declaration?"
>
> "A horse with Tesla bodywork."

<br>

Expand Down Expand Up @@ -89,3 +89,21 @@ return RectorConfig::configure()
We increase it by 1, run Rector, create a pull request, get a review, and merge.

Once we reach the highest level, we can move on to [next prepared sets](/documentation/set-lists#content-prepared-sets).

<br>

## Leveling up PHP Upgrade

One of the main Rector features &ndash; PHP upgrades &ndash; is also covered via levels:


```php
<?php

use Rector\Config\RectorConfig;

return RectorConfig::configure()
->withPhpLevel(5);
```

This way you can handle enormous project upgrades effortlessly, step by step.