calculating age based on date of birth, resulting in year, month, day

age_calculate.php

<?php
// refference : https://www.w3resource.com/php-exercises/php-date-exercise-18.php

$bday  = new DateTime('2021-05-18'); // Your date of birth
$today = new Datetime(date('Y-m-d'));
$diff  = $today->diff($bday);
printf(' Your age : %d years, %d month, %d days', $diff->y, $diff->m, $diff->d);
printf("<br>");
printf("<br>");

echo "Years : " . $diff->y;
printf("<br>");

echo "Month : " . $diff->m;
printf("<br>");

echo "Days : " . $diff->d;