- var_dump: documentation ( source)
<?php
$d1 = DateTime::createFromFormat('d/m/Y h:m','28/05/2014 00:00');
$d2 = DateTime::createFromFormat('d/m/Y h:m','31/05/2014 00:00');
$now = new Datetime();
var_dump($d1);
var_dump($d2);
var_dump($now);
if($now <= $d2){
echo "Yes !";
}