1<?php
2// PHP program to add days to $Date
3
4// Declare a date
5$date = "2019-05-10";
6
7// Add days to date and display it
8echo date('Y-m-d', strtotime($date. ' + 10 days'));
9
10?>
1$effectiveDate = date('Y-m-d', strtotime("+3 months", strtotime($effectiveDate)));