# Installation

HTML: [altophp.com/code-diff/installation](https://altophp.com/code-diff/installation/)

Alto Code Diff requires PHP 8.3 or later.

```bash
composer require alto/code-diff
```

Composer provides the `vendor/autoload.php` file used by the examples in this documentation.

Continue with [Getting started](https://altophp.com/code-diff/getting-started.md).

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ALTO\CODE DIFF: [altophp.com/code-diff](https://altophp.com/code-diff/)
ALTO(PHP): [altophp.com](https://altophp.com/)