php last day of given month code example
Example 1: last day of previous month in php
$lastDay = date('t',strtotime('last month'));
print_r($lastDay);
Example 2: get next month first day php
$config_month = 1;
$config_day = 1;
$new_expiry_date = date('Y-m-d', mktime(0, 0, 0, date('m') + $config_month, 1 + $config_day, date('Y')));