Online PHP editor | refs for KnHWe

<?php $a = '22:15'; $b = '28:50'; $a = DateTime::createFromFormat('H:i|', $a); $b = DateTime::createFromFormat('H:i|', $b); var_dump($a->format('Y-m-d H:i:s')); var_dump($b->format('Y-m-d H:i:s')); $interval = $a->diff($b); var_dump($interval); $minutes = ($interval->h * 60 + $interval->i) / 2; $a->add(new DateInterval("PT{$minitues}M")); var_dump($a);