Calculating Days Past Since day 'X'

[FoxhoundX]

What I have, is a form with three fields, one for day, one for month, one for year.

What I want to do is figure out the number of days past to today's date.

Simple enough for the years, but the months is where it gets complicated, with the different days in months.

Is there a certain php/SQL Function that I could use for this? 😉

[planetsim]

try using mktime()

Basically it will print out a timestamp than its basic maths to work out days.

[FoxhoundX]

Hmm, that seems to be what I am looking for, but it doesn't seem to be working correctly, or so I think.

What I am basically trying to do is create a script for a forum, that you will enter the Date you registered, and your current number of posts, and it will tell you the average number of seconds between your posts.
This is what I have, but I don't THINK it's working...

<?
if(!isset($_POST['posts'])){
echo"<Form Method=Post>
Date Joined: (Month || Day || Year) <Input type=Text size='1' name=month maxlength=2><Input type=Text size=1 name=day maxlength=2><Input type=Text size=1 name=year maxlength=4><BR>
Total Posts: <Input type=Text name=posts  maxlength=5><BR>
<Input type=Submit Value=Calculate>
</FORM>";
}
else
{
$month = $_POST['month'];
$day = $_POST['day'];
$year = $_POST['year'];
$posts = $_POST['posts'];
$curmonth = date("m");
$curday = date("d");
$curyear = date("Y");
$a = mktime(0,0,0,$day,$month,$year);
$b = mktime(0,0,0,$curday,$curmonth,$curyear);
$c = $b-$a;
$total = $c/$posts;
echo $total;
}
?>

[planetsim]

$c = $b-$a;

is incorrect

you must work out the days at the moment its mktime spits out seconds.

so basic maths is

24hrs in 1 day

so

$c = ($b-$a) / 24 / 3600; //should be more accurate