Generate a string detailing all the cohorts a given user belongs to

generatecohortstring.php

<?php
    function getQuarter() {
      $monthNumber = intval(date("m"));
      return floor(($monthNumber - 1) / 3) + 1;
    }
    function buildWeek() {
   	 if (date('l') == "Sunday") {
   		 $sundayTime = time();
   	 }
   	 else {
   		 $sundayTime = strtotime('last sunday');
   	 }
   	 $WY = date("Y", $sundayTime);
   	 $WM = date("m", $sundayTime);
   	 $WD = date("d", $sundayTime);
   	 return sprintf("WY:%s;WM:%s;WD:%s;", $WY, $WM, $WD);
    }

    function getTimeString() {
   	 return sprintf("Y:%s;Q:%s;M:%s;%sD:%s;H:%s", date("Y"), getQuarter(), date("m"), buildWeek(), date("d"), date("H"));
    }
?>