formater une date php code example

Example 1: php format date

<?php
  // To change the format of an existing date
  $old_date_format = "20/03/1999";
  $new_data_format = date("Y-m-d H:i:s", strtotime($old_date_format));

Example 2: format('Y-m-d H:i:s'); ?>

<?php
$date = new DateTime('2000-01-01');
echo $date->format('Y-m-d H:i:s');
?>