Get dates between two dates (PHP)

<?php
// Vladimir Zhelnov // neatek.ru // neatek.pw
// get dates between 2 dates. ;)

function getArrayDates($date1, $date2, $timestamp = false) {
    $period = new DatePeriod(
         new DateTime(date('Y-m-d', strtotime($date1)) ),
         new DateInterval('P1D'),
         new DateTime(date('Y-m-d', strtotime($date2. "+1 days")))
    );


    $array=array();
    foreach( iterator_to_array($period) as $date) {
        if(is_string($date->format('Y-m-d'))) {
            if($timestamp)
                $array[] = (int) strtotime($date->format('Y-m-d'));
            else
                $array[] = $date->format('Y-m-d');
        }
    }

    return $array;
}

/*

Usage : getArrayDates('2017-06-14', '2017-07-01');

Result:
array(18) {
  [0]=>
  string(10) "2017-06-14"
  [1]=>
  string(10) "2017-06-15"
  [2]=>
  string(10) "2017-06-16"
  [3]=>
  string(10) "2017-06-17"
  [4]=>
  string(10) "2017-06-18"
  [5]=>
  string(10) "2017-06-19"
  [6]=>
  string(10) "2017-06-20"
  [7]=>
  string(10) "2017-06-21"
  [8]=>
  string(10) "2017-06-22"
  [9]=>
  string(10) "2017-06-23"
  [10]=>
  string(10) "2017-06-24"
  [11]=>
  string(10) "2017-06-25"
  [12]=>
  string(10) "2017-06-26"
  [13]=>
  string(10) "2017-06-27"
  [14]=>
  string(10) "2017-06-28"
  [15]=>
  string(10) "2017-06-29"
  [16]=>
  string(10) "2017-06-30"
  [17]=>
  string(10) "2017-07-01"
}

OR TIMESTAMPS : Usage : getArrayDates('2017-06-14', '2017-07-01', true);

array(18) {
  [0]=>
  int(1497398400)
  [1]=>
  int(1497484800)
  [2]=>
  int(1497571200)
  [3]=>
  int(1497657600)
  [4]=>
  int(1497744000)
  [5]=>
  int(1497830400)
  [6]=>
  int(1497916800)
  [7]=>
  int(1498003200)
  [8]=>
  int(1498089600)
  [9]=>
  int(1498176000)
  [10]=>
  int(1498262400)
  [11]=>
  int(1498348800)
  [12]=>
  int(1498435200)
  [13]=>
  int(1498521600)
  [14]=>
  int(1498608000)
  [15]=>
  int(1498694400)
  [16]=>
  int(1498780800)
  [17]=>
  int(1498867200)
}