Convert full Date Time into DateTime format

$d1 = strtotime($MainMenu -> create_date);

Current Date/Time Timestamp

$timezone = "Asia/Colombo";
if (function_exists('date_default_timezone_set'))
date_default_timezone_set($timezone);
$i = date('Y-m-d H:i:s');
Table::model()->updateByPk($id, array(
'delete_date'       => $i,
'is_active'      => 0,

));

Date/ Time String to Date /Time Format

$date = $_POST['date'];
$newDateformat = new DateTime($date);
$newDateformat = $newDateformat->format('Y-m-d');
$time = $_POST['time'];
$newTimeformat = new DateTime($time);
$newTimeformat = $newTimeformat->format('H-i-s');