Get the dates inside the two date in PHP (YYYY-MM-DD)

<?php
function createDateRangeArray($strDateFrom,$strDateTo)
{
    // takes two dates formatted as YYYY-MM-DD and creates an
    // inclusive array of the dates between the from and to dates.

    // could test validity of dates here but I'm already doing
    // that in the main script

    $aryRange=array();

    $iDateFrom=mktime(1,0,0,substr($strDateFrom,5,2),     substr($strDateFrom,8,2),substr($strDateFrom,0,4));
    $iDateTo=mktime(1,0,0,substr($strDateTo,5,2),     substr($strDateTo,8,2),substr($strDateTo,0,4));

    if ($iDateTo>=$iDateFrom)
    {
        array_push($aryRange,date('Y-m-d',$iDateFrom)); // first entry
        while ($iDateFrom<$iDateTo)
        {
            $iDateFrom+=86400; // add 24 hours
            array_push($aryRange,date('Y-m-d',$iDateFrom));
        }
    }
    return $aryRange;
}
$array = createDateRangeArray('2015-01-01','2015-01-10');
foreach($array as $dates){
    echo "'".$dates."'";
    echo "<br>";
}

?>


Sample output:
'2015-01-01'
'2015-01-02'
'2015-01-03'
'2015-01-04'
'2015-01-05'
'2015-01-06'
'2015-01-07'
'2015-01-08'
'2015-01-09'
'2015-01-10'