Help please! mktime is skipping September 09!

catchy

Hey,

I have an app that generates an array of 27 days from any given day at the start, to display a gannt chart of 4 weeks in advance. BUT as of today (31 August 2009), September goes missing! It jumps straight to 01 OCt, 02 Oct, and so on.

Here's the code ($days is the array):

for($i=0; $i<=27; $i++) {
$last_day = date('d',mktime(date('h'), date('i'), date('s'), date('m'), date('d',mktime(date('H'),date('i'),date('s'),$this_month,$this_day+$i,$this_year)), date('Y')));
$days[] = $last_day;
$last_month = date('m',mktime(date('h'), date('i'), date('s'), date('m',mktime(date('H'),date('i'),date('s'),$this_month,$this_day+$i,$this_year)), date('j'), date('Y')));
$last_year = date('Y',mktime(date('h'), date('i'), date('s'), date('m'), date('d'), date('Y',mktime(date('H'),date('i'),date('s'),$this_month,$this_day+$i,$this_year))));
}

As you can see, it uses mktime to add an increasing ($i) no. of days to the $last_month variable. BUT it jumps straight from 31/08/09 to 01/10/09.

Help! Any ideas?

Thanks heaps.

johanafm

I'm too tired to analyze what you're actually doing, but there's no need to make things overly complicated:

$this_day = date('d');
$this_month = date('m');
$this_year = date('Y');
for($i=0; $i<=27; $i++) {
	$days[] = date('d',mktime(0, 0, 0, $this_month, $this_day+$i, $this_year)); 

$months[] = date('m',mktime(0, 0, 0, $this_month, $this_day+$i, $this_year)); 

$years[] = date('Y',mktime(0, 0, 0, $this_month, $this_day+$i, $this_year)); 

// or simply just
$date[] = date('Y-m-d',mktime(0, 0, 0, $this_month, $this_day+$i, $this_year)); 

echo $years[$i] . "-" . $months[$i] . "-" . $days[$i] . "<br/>";
echo $date[$i] . "<br/>";

Weedpacket

I can't make out what's going on either (incidentally, that's a list of 28 days....) but....

for($i=0; $i<=27; $i++)
{
    $days[] = date('Y-m-d', strtotime("midnight +$i days"));
}
print_r($days);

Specifying midnight so that it doesn't get upset by Daylight Saving (because when the clocks go forward there might not be such a time as 03:45, depending on just when the transition is made).

catchy

@ @ thanks a million. You're absolutely right, that code's way overcomplicated. It's code I've inherited without fully knowing what it's doing.

Thanks for the examples on simplifying it and giving accurate results.