首先，按如下方式注册设置：

function my_awesome_register_fields_for_additional_settings(){
    register_setting(\'reading\', \'my_awesome_pagelink_for_frontend_button\');
    add_settings_field(\'my_awesome_pagelink_for_frontend_button\', \'<label for="my_awesome_pagelink_for_frontend_button">The Frontend Button shall link to this page:</label>\' , \'my_awesome_pagelink_for_frontend_button_html\', \'reading\');
}

add_filter(\'admin_init\', \'my_awesome_register_fields_for_additional_settings\');

然后，为设置字段定义回调：

function my_awesome_pagelink_for_frontend_button_html(){
    $option = (int)get_option(\'my_awesome_pagelink_for_frontend_button\',0);
    wp_dropdown_pages(array(
            \'selected\' => $option,
            \'name\'   => \'my_awesome_pagelink_for_frontend_button\',
            \'show_option_none\'  => \'Please Choose\',
            \'option_none_value\' => 0, 
                ));
}

wp\\u dropdown\\u pages函数使用页面ID作为值，因此您已经设置好了。

你现在需要做的就是像这样回应前端的按钮：

if($buttonlink = (int)get_option(\'my_awesome_pagelink_for_frontend_button\',0)){
      ?><a href="<?php echo get_permalink($buttonlink); ?>" class="button"><?php echo get_the_title($buttonlink); ?></a><?php
}

快乐编码，Kuchenundkakao

编辑：语言。