date comparison

[sitorush]

Hello.. i have trouble with date comparison (if user send different years it gives back 0 val)

is there a way to compare date without the year? what is the trick for this situation?

here is my code, thank you...

<?
function DatesBetween($startDate, $endDate){
    // get the number of days between the two given dates.
    $days = (strtotime($endDate) - strtotime($startDate)) / 86400 + 1;
    $startMonth = date("m", strtotime($startDate));
    $startDay = date("d", strtotime($startDate));
    $startYear = date("Y", strtotime($startDate));   
    $dates;//the array of dates to be passed back
    for($i=0; $i<$days; $i++){
        $dates[$i] = date("Y-m-d", mktime(0, 0, 0, $startMonth , ($startDay+$i), $startYear));
    }
    return $dates;   
}

$dates = DatesBetween("2007-12-31","2008/01/02");

print_r ($dates);
echo "<br><br>";
$i = 0;
while ($i < (count($dates))-1) {

if  ($dates[$i] >= (date('Y')."-01-09") && $dates[$i] <= (date('Y')."-04-08")) {
	$price = 250;
} else if  ($dates[$i] >= (date('Y')."-04-09") && $dates[$i] <= (date('Y')."-04-16")) {
	$price = 300;
} else if  ($dates[$i] >= (date('Y')."-04-17") && $dates[$i] <= (date('Y')."-07-14")) {
	$price = 250;
} else if  ($dates[$i] >= (date('Y')."-07-15") && $dates[$i] <= (date('Y')."-07-31")) {
	$price = 300;
} else if  ($dates[$i] >= (date('Y')."-08-01") && $dates[$i] <= (date('Y')."-08-31")) {
	$price = 350;
} else if  ($dates[$i] >= (date('Y')."-09-01") && $dates[$i] <= (date('Y')."-09-15")) {
	$price = 300;
} else if  ($dates[$i] >= (date('Y')."-09-16") && $dates[$i] <= (date('Y')."-12-19")) {
	$price = 250;
} else if ($dates[$i] >= (date('Y')."-20-12") && $dates[$i] <= (date('Y')."-01-10")) {
	$price = 350;
}
$i++;
echo $price;
$total+=$price;
echo "<br>";
}
echo "total =", $total;
?>