语法错误，意外出现“ corppress_create_class_shortcode”（T_STRING）

Question

最近决定更新我的旧wordpress主题，以与PHP 7.2.1一起使用。自从我用PHP编码以来已经有一段时间了，所以似乎有些失误了。如果有人可以帮助我解决上面列出的错误，那就太好了！

$func = function($atts, $content = null) use ($class_list) {
    return "<div class='$class_list'>" . do_shortcode($content) . "</div>"; 
}

corppress_create_class_shortcode('one_half');
corppress_create_class_shortcode("one_half_last", "one_half last");
corppress_create_class_shortcode("one_third");
corppress_create_class_shortcode("one_third_last", "one_third last");
corppress_create_class_shortcode("two_thirds", "two_thirds");
corppress_create_class_shortcode("two_thirds_last", "two_thirds last");
corppress_create_class_shortcode("one_fourth", "one_fourth");
corppress_create_class_shortcode("one_fourth_last", "one_fourth last");
corppress_create_class_shortcode("three_fourths", "three_fourths");
corppress_create_class_shortcode("three_fourths_last", "three_fourths last");