$endDate = "29/03/14";
echo date("jS F, Y", strtotime( $endDate ));

echo date("jS F, Y", strtotime( trim($endDate) ));

$dateObj = DateTime::createFromFormat('d/m/y', $str);
echo $dateObj->format('jS F, Y');

29th March, 2014

$str = '29/03/14';
$dateObj = DateTime::createFromFormat('d/m/y', $str);

if ($dateObj->format('d') == $dateObj->format('t')) {
    echo 'Given date is the last day of the month';
}

$date = DateTime::createFromFormat('d/m/y', '29/03/14');
echo $date->format("jS F, Y");

echo $date->format('t');