Question

I am using

$jsdate = date("Y, m, d", strtotime('-1 month', (strtotime($date))));

to convert my dates from

2011-03-28
to
2011, 02, 28

Problem is this is producing unpredictable results. For example today I got

2011-03-28
converted to
2011, 02, 28  // OK

 AND

2011-03-29
to
2011, 03, 01 // not OK!

Does anyone know what’s wrong here? I wonder if the calculation is inaccurate because of the -1 month.

Is there a way of simply subtracting 1 from m in ...date("Y, m, d", ...?

MORE INFO:

My data needs to be formatted as JavaScript Date Object in which January is 0, Feb is 1, etc. Therefore there is not a need to specifically subtract 1 month but actually subtract 1 from the month integer. At the end, the resulting string is not supposed to be 1 month earlier, but actually the same date, represented using JS Date Object style. I believe @vprimachenko’s answer below is a good solution. I apologize if this wasn’t clear in my OP.

Thanks!

Answer 1

you might use

$datee = explode('-',$date);
if($datee[1]-- < 0) {
    $datee[1]=12;
    $datee[0]--;
}
$jsdate = implode(', ',$datee);