File Content: language-helper.php <?php namespace Yoast\WP\SEO\Helpers; use WPSEO_Language_Utils; use Yoast\WP\SEO\Config\Researcher_Languages; /** * A helper object for language features. */ class Language_Helper { /** * The languages with inclusive language analysis support. * * @var string[] */ public static $languages_with_inclusive_language_support = [ 'en' ]; /** * Checks whether word form recognition is active for the used language. * * @param string $language The used language. * * @return bool Whether word form recognition is active for the used language. */ public function is_word_form_recognition_active( $language ) { $supported_languages = [ 'de', 'en', 'es', 'fr', 'it', 'nl', 'ru', 'id', 'pt', 'pl', 'ar', 'sv', 'he', 'hu', 'nb', 'tr', 'cs', 'sk', 'el', 'ja' ]; return \in_array( $language, $supported_languages, true ); } /** * Checks whether the given language has function word support. * (E.g. function words are used or filtered out for this language when doing some SEO and readability assessments). * * @param string $language The language to check. * * @return bool Whether the language has function word support. */ public function has_function_word_support( $language ) { $supported_languages = [ 'en', 'de', 'nl', 'fr', 'es', 'it', 'pt', 'ru', 'pl', 'sv', 'id', 'he', 'ar', 'hu', 'nb', 'tr', 'cs', 'sk', 'fa', 'el', 'ja' ]; return \in_array( $language, $supported_languages, true ); } /** * Checks whether the given language has inclusive language support. * * @param string $language The language to check if inclusive language is supported. * * @return bool Whether the language has inclusive language support. */ public function has_inclusive_language_support( $language ) { return \in_array( $language, self::$languages_with_inclusive_language_support, true ); } /** * Checks whether we have a specific researcher for the current locale and returns that language. * If there is no researcher for the current locale, returns default as the researcher. * * @return string The language to use to select a researcher. */ public function get_researcher_language() { $researcher_language = WPSEO_Language_Utils::get_language( \get_locale() ); $supported_languages = Researcher_Languages::SUPPORTED_LANGUAGES; if ( ! \in_array( $researcher_language, $supported_languages, true ) ) { $researcher_language = 'default'; } return $researcher_language; } /** * Returns The site language code without region * (e.g. 'en' for 'en_US' or 'en_GB'). * * @return string The site language code without region. */ public function get_language() { return WPSEO_Language_Utils::get_language( \get_locale() ); } } Submit