Fill assoc array with date - arrays

Question

I need to fill a assoc array $pay_day with the key = date and a value of 0, from a start date $d1 till an end date $d2.
$d1 = strtotime("October 12 2014");
$d2 = strtotime("February 28 2015");
$startday = date('F j, Y', $d1 + (24 * 60 * 60));
echo "<h2>Startday is " . $startday . "</h2>";
$endday = date('F j, Y', $d2 + (24 * 60 * 60));
echo "<h2>Endday is " . $endday . "</h2>";
$n=0;
$d3=$d1;
while ($d3 <= $d2) {
$d3 = date('F j, Y', ($d1 + ++$n*(24 * 60 * 60)));
$pay_day[$d3] = 0;
}

Answer 1

$d1 = 'August 12 2014';
$d2 = 'February 28 2015';
$period = new \DatePeriod(
\DateTime::createFromFormat('F d Y', $d1),
new \DateInterval('P1D'),
\DateTime::createFromFormat('F d Y', $d2)->modify('+1 day'));
foreach($period as $date) {
$d3 = $date->format('F j, Y');
$pay_day[$d3] = 0;
}
print_r($pay_day);