Given two timestamps and a integer, returns the Y-m-d range, separated by days of that integer

gistfile1.aw

<?php
    /**
     * Given two timestamps and a integer, returns the Y-m-d range, separated by days
     * of that integer
     *
     * @param   int     $start_ts   Starting timestamp
     * @param   int     $end_ts     Ending timestamp
     * @return  array
     *
     * @test
     * $mydates = DateFormat::get_date_ranges(strtotime("2010-03-14"),strtotime("2010-03-29"),10);
     * echo json_encode($mydates);
     * @expects
     * [["2010-03-14","2010-03-23"],["2010-03-24","2010-03-29"]]
     * @end
     *

     */
    public static function get_date_ranges($start_ts, $end_ts, $days_per_range) {
        $date_ranges = array();

        $end_ts += 8600;
        $days = $days_per_range - 1;

        for($real_start_ts = $start_ts; $real_start_ts <= $end_ts; $real_start_ts += (86400 * $days_per_range)) {
            $real_end_ts = strtotime(date("Y-m-d", $real_start_ts) . " + $days days");
            if($real_end_ts - $end_ts >= 0) {
                $real_end_ts = $end_ts;
            }

            $date_ranges[] = array(date("Y-m-d", $real_start_ts), date("Y-m-d", $real_end_ts));
        }

        return $date_ranges;
    }
?>