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---
layout: default
title: Inlines Only Extension
description: The InlinesOnlyExtension only enables parsing of inline elements
---
# Inlines Only Extension
This extension configures the parser to only render inline elements - no paragraph tags, headers, code blocks, etc. This makes it perfect for commenting systems where you only want users having bold, italics, links, etc.
## Installation
This extension is bundled with `league/commonmark`. This library can be installed via Composer:
```bash
composer require league/commonmark
```
See the [installation](/2.2/installation/) section for more details.
## Usage
Although you normally add extra extensions along with [the default CommonMark Core extension](/2.2/extensions/commonmark/), we're not going to do that here, because this is essentially a slimmed-down version of the core extension:
```php
use League\CommonMark\Environment\Environment;
use League\CommonMark\Extension\InlinesOnly\InlinesOnlyExtension;
use League\CommonMark\MarkdownConverter;
// Define your configuration, if needed
$config = [];
// Create a new, empty environment
$environment = new Environment($config);
// Add this extension
$environment->addExtension(new InlinesOnlyExtension());
// Instantiate the converter engine and start converting some Markdown!
$converter = new MarkdownConverter($environment);
echo $converter->convert('**Hello World!**');
```
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