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PHP

Expose the Page Language to JavaScript

Adds a small window.wpideLang object with the current locale, language code and text direction, so your scripts can format dates, numbers or messages correctly without guessing.

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Code

add_action( 'wp_head', function () {
    $locale = determine_locale();
    $code   = strtok( str_replace( '_', '-', $locale ), '-' );

    if ( defined( 'ICL_LANGUAGE_CODE' ) && ICL_LANGUAGE_CODE ) {
        $code = ICL_LANGUAGE_CODE;
    } elseif ( function_exists( 'pll_current_language' ) && pll_current_language() ) {
        $code = pll_current_language();
    }

    $data = array(
        'locale' => $locale,
        'code'   => $code,
        'dir'    => is_rtl() ? 'rtl' : 'ltr',
    );

    echo '<script>window.wpideLang=' . wp_json_encode( $data ) . ';</script>' . "\n";
}, 1 );

Notes

Picks up the language set by WPML or Polylang when either is active, otherwise the WordPress locale.

How to add this snippet

  1. Install WPIDE on your WordPress site (it is free) and open Code Snippets.
  2. Use snippet above adds it from the library in one click. Or copy the code into a new snippet with the same code type.
  3. It is added inactive: review the code and settings, then switch it on.

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