Answers for "php get every 3 days ago date"

Get the number of days between two dates in PHP

$startDate = new DateTime("2019-10-27");
$endDate = new DateTime("2020-04-11");

$difference = $endDate->diff($startDate);
echo $difference->format("%a");

php date + 30 days

echo date('d/m/Y',strtotime('+30 days',strtotime(str_replace('/', '-', '05/06/2016')))) . PHP_EOL;

calculate 18 years back date in php

date('Y-m-d', strtotime('18 years ago'))