# wordpress-seo/18.1/src/config/researcher-languages.php

Yoast SEO – Advanced SEO with real-time guidance and built-in AI, version 18.1. 12 lines.

- Page: https://pluginprobe.com/plugins/wordpress-seo/18.1/code/src/config/researcher-languages.php
- Raw: https://pluginprobe.com/plugins/wordpress-seo/18.1/raw/src/config/researcher-languages.php
- Modified: 2021-12-21T10:29:22+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
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```php
<?php

namespace Yoast\WP\SEO\Config;

/**
 * Holds all languages supported with specific researches for our readability analysis.
 */
class Researcher_Languages {

	const SUPPORTED_LANGUAGES = [ 'ar', 'ca', 'de', 'en', 'es', 'fa', 'fr', 'he', 'hu', 'id', 'it', 'nb', 'nl', 'pl', 'pt', 'ru', 'sv', 'tr', 'cs', 'sk', 'el', 'ja' ];
}

```