Expected Input:
getDatesFromRange( '2010-10-01', '2010-10-05' );
Expected Output:
Array( '2010-10-01', '2010-10-02', '2010-10-03', '2010-10-04', '2010-10-05' )
You could also take a look at the DatePeriod class:
$period = new DatePeriod(
new DateTime('2010-10-01'),
new DateInterval('P1D'),
new DateTime('2010-10-05')
);
Which should get you an array with DateTime objects.
To iterate
foreach ($period as $key => $value) {
//$value->format('Y-m-d')
}