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();