class and public method

<?php
class dateNow
{
protected $_dateNow='';

public function getCurrentDate()
{
$_dateNow=date("y-m-d");
return $_dateNow;
}

public function future_date()
{
$abc=date("y-m-d",strtotime("+ 7 days"));
return $abc;
}

}

$magicdate=new dateNow();
echo $magicdate->getCurrentDate();
echo '<br />';
echo $magicdate->future_date();
?>