code: public static double gunningFogScore(String strText) {
          strText = cleanText(strText);
          return PHPMethods.round(((averageWordsPerSentence(strText) + percentageWordsWithThreeSyllables(strText)) * 0.4), 1);
      }
docs: Returns the Gunning-Fog score of text entered rounded to one digit.
  
  @param   strText         Text to be checked
  @return