add days in datetime php code example

Example 1: php date plus days

<?php 
// PHP program to add days to $Date 
  
// Declare a date 
$date = "2019-05-10"; 
  
// Add days to date and display it 
echo date('Y-m-d', strtotime($date. ' + 10 days')); 
  
?>

Example 2: php datetime add 1 weeek

$date = new DateTime();
$date->modify('+1 day');
$date->modify('+5 week');