$s = '06/10/2011 19:00:02';
$date = strtotime($s);
echo date('d/M/Y H:i:s', $date);
The above one is the one of the example of converting a string to date.
echo $s ->format('Y-m-d');
The above one is another method
<?php
$date = new DateTime('2000-01-01');
echo $date->format('Y-m-d H:i:s');
?>
$element = '15-Feb-2009';
$date = DateTime::createFromFormat('j-M-Y', $element);echo date('Y.m.d H:i:s');Date to string
$date = "2021/03/13";
$newdate= date('d M, Y', strtotime($date));
echo $newdate;$date_string_prepared = date_create("2020-08-07");
$date_string = $date_string_prepared->format("d M Y");
// result 07 Jul 2020