This question already has an answer here:
I'm trying to get previous month of current month.
For example, current month is October , the value return should be September.
I've tried
$currmonth = date('m', strtotime('-1 month'));
But it return the same month - October. But when I replace to -2month, it will return August which is correct.
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Try this:
$currmonth = date('F', mktime(0, 0, 0, date('m') - 1, 1, date('Y')));
Output :
September
$dt = new DateTime('first day of last month');
echo $dt->format('m');
// 09