PHP

last day of previous month in php

$lastDay = date('t',strtotime('last month'));

print_r($lastDay);

how to get previous month in php

echo date('M Y', strtotime("-1 month"));
//to get date with time of previous month
echo date("Y-m-d H:i:s",strtotime("-1 month"));

previous month number in php

<?php
    $date = "2020-01-11";
    $newdate = date("Y-m-d", strtotime ( '-1 month' , strtotime ( $date ) )) ;
    echo $newdate;
?>

php date function get previous month

$tgl = '25 january 2012';

$prevmonth = date("M Y",mktime(0,0,0,date("m", strtotime($tgl))-1,1,date("Y", strtotime($tgl))));
echo $prevmonth;