how to separate date from datetime in php code example

Example 1: separate date from datetime php

date('Y-m-d', strtotime( '2015-04-16 15:00:01' ) );

Example 2: separate date from datetime php

$time = new DateTime("2011-08-04 15:00:01");
$date = $time->format('n.j.Y');
$time = $time->format('H:i');