public static double fleschKincaidGradeLevel(String strText) {
        strText = cleanText(strText);
        return PHPMethods.round(((0.39 * averageWordsPerSentence(strText)) + (11.8 * averageSyllablesPerWord(strText)) - 15.59), 1);
    }
public static double fleschKincaidGradeLevel ( String strText ) { strText = cleanText ( strText ) ; return PHPMethods . round ( ( ( 0.39 * averageWordsPerSentence ( strText ) ) + ( 11.8 * averageSyllablesPerWord ( strText ) ) - 15.59 ) , 1 ) ; }
Returns the Flesch-Kincaid Grade level of text entered rounded to one digit.

@param   strText         Text to be checked
@return