Big Big trouble

[Anon]

Hi there,

I'm trying to do a website where the customer can choose the pickup date and the return date for the item. I have 2 differents rates:

length > 1 < 7 days: 2.50/day
length >= 7 days: 16.00/week (extra days + 2.50)

I have no idea what to do if the customer choose like 9 days or 14 days or 17 days and so and so and so...

We know that 9 days is equal to 1 week and 2 days:

16.00 + 2.50 + 2.50 = 21.00

Please help me.

Thank you.

[Anon]

Do you have some code to look at? We can help better that way. Thanks!
Chad

[Anon]

I don't have it right now. I'm trying to do but my mind is empty. I have no clue how to do it...

I appreciate if you can help me to do it.

[Anon]

Ok, so let's take your example. How do you know there's 1 week in 9 days? You see how many 7's fit in 9, right? And that's basically what division is. And how do you know there's an extra 2 days? You use the maximum number of 7's that fit and subtract from 9, right? That's basically what the remainder of the division operation gives you. The remainder can be calculated using the modulus operator which is % in PHP.

Diego

[Anon]

I'm trying to do something...but I'm not sure that works.

How can I use the % Module? Can you give me an example?

<?

$item1_day_rate = "2.50";
$item1_wek_rate = "16.00";

$d1 = "07-01-2002";
$d2 = "07-10-2002";

$d1_tmp = strtotime($d1);
$d2_tmp = strtotime($d2);

$length = ($d2_tmp - $d1_tmp) / 86400;

if (($length - 7) < 7) {

$temp = ($length - 7) * $item1_day_rate;
$temp2 = $temp + $item1_wek_rate;

print $temp2;

}

?>

[Anon]

If $length is the number of days (i.e. 9 in your previous example), you can just do:

$price = floor($length/7) $item1_wek_rate + ($length%7) $item1_day_rate;

Diego

[Anon]

I'll give you an example of the modulos function so you can understand what it does a bit better.

11 % 3 = 2

because 11/3 is 3 and 3*3 is 9 so the remainder is 11-9=2

[khaine]

why not just let phps time/date function do the calc for you??.

This code should cale the increase in the days changing the month and year if required.

<PRE>
<?
$date="30/06/2002"; // Create a date to add to.
$length="9"; // length to add in days.
list($dd, $mm, $yy)=explode("/", $date);
echo date("d/m/Y", mktime(0, 0, 0, $mm, ($dd+$length), $yy));
?>
</PRE>

Mark.