get startdate and enddate for current quarter php

Question

I am trying to set a start date and end date by the quarter.

For example, I am working on a reporting system where i need to report data for quarter 1, quarter 2, qu

Answer 1

I glimpsed over answers and all are about quarters of this year. Sometimes, you need quarter for particular date. Here is my attempt with detailed explanation what-does-what in code comments:

/**
     * get quarter begin/end date
     * 
     * possible usage:
     * quarter start date: quarter('2016-04-12')[start] - result: 2016-04-01
     * quarter end date: quarter('2016-04-12')[end] - result: 2016-06-30
     * quarter number: quarter('2016-04-12')[number] - result: 2
     * 
     * @param  string   $time   date you want quarter begin and end for - accepted formats, at least: 'Y-m', but also: 'Y-m-d', 'Y-m-d H:i:s' etc.
     * @return array    [quarter start, quarter end, quarter number]
     */
    public function quarter($time)
    {
        /**
         * get quarter number for given date
         * we are ceiling floating point value, so I use (int) casting to get just integer (without decimal part)
         * round() could be used instead of casting to (int)
         */
        $quarter = (int)ceil(date("m", strtotime($time)) / 3);
        $year = date("Y", strtotime($time));

        $quarters = [
            1 => ['01-01', '03-31', 1],
            2 => ['04-01', '06-30', 2],
            3 => ['07-01', '09-30', 3],
            4 => ['10-01', '12-31', 4],
        ];

        $quarterStart = $year . '-' . $quarters[$quarter][0];
        $quarterEnd = $year . '-' . $quarters[$quarter][1];
        $quarterNumber = $quarters[$quarter][2];

        return ['start' => $quarterStart, 'end' => $quarterEnd, 'number' => $quarterNumber];
    }