php convert timestamp to DateTime code example

Example 1: php timestamp to date

<?php 
echo date('m/d/Y H:i:s', 1541843467); 
?>

Example 2: php datetime to timestamp

$time = '2021-03-31 23:59:00';
strtotime($time);

Example 3: php date object to timestamp

$date = new DateTime();
echo $date->getTimestamp();