static function get_excerpt($post_content, $post_excerpt, $max_words = 16, $max_chars = 256)
 {
     if (function_exists('wpcom_enhanced_excerpt_extract_excerpt')) {
         return self::clean_text(wpcom_enhanced_excerpt_extract_excerpt(array('text' => $post_content, 'excerpt_only' => true, 'show_read_more' => false, 'max_words' => $max_words, 'max_chars' => $max_chars, 'read_more_threshold' => 25)));
     } else {
         /** This filter is documented in core/src/wp-includes/post-template.php */
         $post_excerpt = apply_filters('get_the_excerpt', $post_excerpt);
         return self::clean_text($post_excerpt);
     }
 }
 static function get_excerpt($post_content, $post_excerpt)
 {
     if (function_exists('wpcom_enhanced_excerpt_extract_excerpt')) {
         return self::clean_text(wpcom_enhanced_excerpt_extract_excerpt(array('text' => $post_content, 'excerpt_only' => true, 'show_read_more' => false, 'max_words' => 16, 'max_chars' => 100)));
     } else {
         $post_excerpt = apply_filters('get_the_excerpt', $post_excerpt);
         return self::clean_text($post_excerpt);
     }
 }