Translate the blog name and description with Polylang • Chez Brasofilo

The first filter, applied to option_blogdescription, dynamically translates the WordPress blog description based on the current Polylang language, ensuring the appropriate translation is displayed on the frontend while leaving the admin area unaffected; it achieves this by checking the active language via pll_current_language() and substituting the default description with a predefined translation if available, falling back to the original description otherwise.

The second filter, targeting option_blogname, modifies the blog name by appending a language-specific suffix when viewed on the frontend by logged-in users, utilizing Polylang’s language detection to customize the output for supported languages, while also preserving the original name in unsupported scenarios or within the admin area.

`Frontend // Blog Description translation`

<?php
/**
 * Filter to translate the blog description (option_blogdescription) based on the current Polylang language.
 *
 * This filter modifies the blog description dynamically by checking the current language using Polylang's
 * `pll_current_language()` function. If a translation exists for the current language, it replaces the
 * default description. This only applies on the frontend and not in the admin area.
 *
 * @param string $description The original blog description from the WordPress settings.
 * @return string The translated blog description if available, otherwise the original description.
 */
add_filter('option_blogdescription', function ($description) {
    // Check if Polylang is active and ensure we're not in the admin area.
    if (function_exists('pll_current_language') && !is_admin()) {
        $current_lang = pll_current_language(); // Get the current language code (e.g., 'pt', 'es').
        $translated_descriptions = array(
            'pt' => 'Plugins de WordPress + Extensões + Bots',
            'es' => 'Complementos de WordPress + Extensiones + Bots',
        );

        // Return the translated description if available for the current language.
        if (isset($translated_descriptions[$current_lang])) {
            return $translated_descriptions[$current_lang];
        }
    }

    // Fallback to the original description if no translation is found or Polylang is inactive.
    return $description;
});

/**
 * Filter to modify the blog name (option_blogname) based on the current Polylang language and user login status.
 *
 * This filter appends a language-specific suffix to the blog name dynamically. It checks the current language
 * using Polylang's `pll_current_language()` function and ensures the modification only applies on the frontend,
 * outside the admin area, and when a user is logged in.
 *
 * @param string $name The original blog name from the WordPress settings.
 * @return string The modified blog name with a language-specific suffix if applicable, otherwise the original name.
 */
add_filter('option_blogname', function ($name) {
    // Check if Polylang is active, ensure we're not in the admin area, and verify the user is logged in.
    if (function_exists('pll_current_language') && !is_admin() && is_user_logged_in()) {
        $current_lang = pll_current_language(); // Get the current language code (e.g., 'pt', 'es').
        $translated_names = array(
            'pt' => "$name : pt",
            'es' => "$name : es",
        );

        // Append the language-specific suffix if available for the current language.
        if (isset($translated_names[$current_lang])) {
            return $translated_names[$current_lang];
        }
    }

    // Fallback to the original blog name if no modification is applicable.
    return $name;
});

Frontend // Blog Description translation

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`Frontend // Blog Description translation`