Online PHP editor | refs for UFo9g

<?php $dob = new DateTime('24 June 1940'); $now = new DateTime('now'); echo year_diff($now, $dob); function year_diff($date1, $date2) { list($year1, $dayOfYear1) = explode(' ', $date1->format('Y z')); list($year2, $dayOfYear2) = explode(' ', $date2->format('Y z')); return $year1 - $year2 - ($dayOfYear1 < $dayOfYear2); }