gistfile1.php

<?php

class CalDay
{
    protected $date;
    protected $week;
    protected $id;

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function getId()
    {
        return $this->id;
    }

    public function setDate(\DateTime $date)
    {
        $this->date = $date;
        return $this;
    }

    public function getDate()
    {
        return $this->date;
    }

    public function setWeek(CalWeek $week)
    {
        $this->week = $week;
        return $this;
    }

    public function getWeek()
    {
        return $this->week;
    }
}

class CalWeek
{
    protected $days = [];
    protected $month;
    protected $id;

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function getId()
    {
        return $this->id;
    }

    public function setDay(CalDay $day)
    {
        $this->days[] = $day;
        return $this;
    }

    public function getDays()
    {
        return $this->days;
    }

    public function setMonth(CalMonth $month)
    {
        $this->month = $month;
        return $this;
    }

    public function getMonth()
    {
        return $this->month;
    }
}

class CalMonth
{
    protected $weeks = [];
    protected $quarter;
    protected $id;

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function getId()
    {
        return $this->id;
    }

    public function setWeek(CalWeek $week)
    {
        $this->weeks[] = $week;
        return $this;
    }

    public function getWeeks()
    {
        return $this->weeks;
    }

    public function setQuarter(CalQuarter $quarter)
    {
        $this->quarter = $quarter;
        return $this;
    }

    public function getQuarter()
    {
        return $this->quarter;
    }
}

class CalQuarter
{
    protected $months = [];
    protected $year;
    protected $id;

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function getId()
    {
        return $this->id;
    }

    public function setMonth(CalMonth $month)
    {
        $this->months[] = $month;
        return $this;
    }

    public function getMonths()
    {
        return $this->months;
    }

    public function setYear(CalYear $year)
    {
        $this->year = $year;
        return $this;
    }

    public function getYear()
    {
        return $this->year;
    }
}

class CalYear
{
    protected $quarters = [];
    protected $id;

    public function setId($id)
    {
        $this->id = $id;
        return $this;
    }

    public function getId()
    {
        return $this->id;
    }

    public function setQuarter(CalQuarter $quarter)
    {
        $this->quarters[] = $quarter;
        return $this;
    }

    public function getQuarters()
    {
        return $this->quarters;
    }
}

class Calendar
{
    protected $years = [];

    public function __construct(\DateTime $startDate, $years = 1)
    {
        $startDate->modify('-1 day');
        $records  = [];

        foreach (range(1, $years) as $year) {

            $dayOfWeek      = 0;
            $dayOfMonth     = 0;
            $dayOfQuarter   = 0;
            $dayOfYear      = 0;

            $weekOfMonth    = 1;
            $weekOfQuarter  = 1;
            $weekOfYear     = 1;

            $monthOfYear    = 1;
            $monthOfQuarter = 1;

            $quarterOfYear  = 1;

            foreach (range(1, 364) as $dayOfYear) {
                ++$dayOfMonth;
                ++$dayOfQuarter;

                if ($dayOfWeek == 7) {
                    $dayOfWeek   = 1;
                    ++$weekOfQuarter;
                    ++$weekOfMonth;
                    ++$weekOfYear;
                } else {
                    ++$dayOfWeek;
                }

                if ($dayOfQuarter == 29 || $dayOfQuarter == 57 || $dayOfQuarter == 92) {
                    $dayOfMonth = 1;
                    $weekOfMonth = 1;
                    ++$monthOfQuarter;
                    ++$monthOfYear;
                }

                if ($dayOfQuarter > 91) {
                    $dayOfQuarter = 1;
                    $weekOfQuarter = 1;
                    $monthOfQuarter = 1;
                    ++$quarterOfYear;
                }

                $records[$year][$quarterOfYear][$monthOfQuarter][$weekOfQuarter][$dayOfWeek] = clone $startDate->modify('+1 day');
            }
        }

        foreach ($records as $year => $years) {
            $year = (new CalYear)->setId($year);
            foreach ($years as $quarter => $months) {
                $quarter = (new CalQuarter)->setId($quarter);
                foreach ($months as $month => $weeks) {
                    $month = (new CalMonth)->setId($month);
                    foreach ($weeks as $week => $days) {
                        $week = (new CalWeek)->setId($week);
                        foreach ($days as $day => $date) {
                            $day = (new CalDay)->setId($day)->setDate($date);
                            $week->setDay($day);
                        }
                        $month->setWeek($week);
                    }
                    $quarter->setMonth($month);
                }
                $this->years[] = $year->setQuarter($quarter);
            }
        }
    }

    public function fetch()
    {
        return $this->years;
    }

    public function __toString()
    {
        return serialize($this->years);
    }
}

var_dump((new Calendar(new \DateTime('2013-07-01'), 3)));