Getting last month's date in php

Question

I want to get last month\'s date. I wrote this out:

$prevmonth = date(\'M Y\');

Which gives me the current month/year. I can\'t tell if I

Answer 1

$lastMonth = date('M Y', strtotime("-1 month"));
var_dump($lastMonth);
$lastMonth = date('M Y', mktime(0, 0, 0, date('m') - 1, 1, date('Y')));
var_dump($lastMonth);