# Installation

HTML: [altophp.com/json-patch/installation](https://altophp.com/json-patch/installation/)

Alto JSON Patch requires PHP 8.3 or later and the JSON extension.

```bash
composer require alto/json-patch
```

## Verify the installation

```php
<?php

require __DIR__.'/vendor/autoload.php';

use Alto\JsonPatch\JsonPatch;

$result = JsonPatch::apply(
    ['enabled' => false],
    [['op' => 'replace', 'path' => '/enabled', 'value' => true]],
);

var_export($result);
```

The script prints `array ('enabled' => true,)` with PHP's normal multiline
formatting.

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Previous: [Alto JSON Patch](https://altophp.com/json-patch/index.md)
Next: [Getting started](https://altophp.com/json-patch/getting-started.md)

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ALTO\JSON PATCH: [altophp.com/json-patch](https://altophp.com/json-patch/)
ALTO(PHP): [altophp.com](https://altophp.com/)