WPML-Language-switcher.php

<?php

/*
* https://wpml.org/wpml-hook/wpml_active_languages/
*/
function press_wpml_language_selector() {
    if (!is_front_page() && is_home()) {
        $url = get_post_type_archive_link('post');
        $output = '';
        $langs = [
            [
                'url'  => apply_filters('wpml_permalink', $url, 'en'),
                'name' => 'English'
            ],
            [
                'url'  => apply_filters('wpml_permalink', $url, 'zh-hans'),
                'name' => '中文'
            ],
            [
                'url'  => apply_filters('wpml_permalink', $url, 'pa'),
                'name' => 'Punjabi'
            ]
        ];
        foreach ($langs as $lang) {
            $output .= sprintf('<li class="press-wpml-swatch"><a class="wpml-ls-link" href="%s"><span class="wpml-ls-native">%s</span></a></li>', $lang['url'], $lang['name']);
        }

    } else {
        $output = '';
        $languages = icl_get_languages('skip_missing=0&orderby=DIR');
        if (!empty($languages)) {
            foreach ($languages as $language) {
                if ($language['active']) {
                    continue;
                }
                $output .= sprintf('<li class="press-wpml-swatch"><a class="wpml-ls-link" href="%s"><span class="wpml-ls-native">%s</span></a></li>',
                    $language['url'],
                    $language['code'] === 'zh-hans' ? '中文' : $language['native_name']
                );
            }
        }
//        echo "<pre>";
//        print_r($languages);
//        echo "</pre>";
//        $output = '';
//        ob_start();
//        do_action('wpml_add_language_selector');
//        $wpml_items = ob_get_clean();
//        if ($wpml_items) {
//            $wpml_items = str_replace('简体中文', '中文', $wpml_items);
//            $regex = '#\<a href="([^"]*)".*?\>(.+?)\<\/a\>#s';
//            preg_match_all($regex, $wpml_items, $res, PREG_SET_ORDER);
//            if (!empty($res)) {
//                foreach ($res as $item) {
//                    if (strpos($item[0], "한국어") === false) {
//                        $output .= sprintf('<li class="press-wpml-swatch">%s</li>',
//                            $item[0]
//                        );
//                    }
//                }
//            }
//
//        }
    }

    return $output;
}