create date range

gistfile1.php

<?php 
function date_range($start, $end, $format = 'Y-m-d')
{
	$start = DateTime::createFromFormat($format, $start);
	// add 1 day to include last date
	$end = DateTime::createFromFormat($format, $end)->modify('+1 day');
	
	$dates = new DatePeriod($start, new DateInterval("P1D"), $end);
	
	$range = array();
	
	foreach($dates as $dt) 
	{
		$range[] = $dt->format($format);
	}	
	
	return $range;
}