Задачи въведение PHP 5

<html>
<body>


<?php
$paragraph="<p>От кой град сте?</p>";
echo"$paragraph";
$gradove=array('Варна','София','Бургас','Тетевен');
foreach($gradove as $grad){
    echo "<input type=\"radio\" id=\"$grad\" name=\"fav_city\" value=\"$grad\">
<label for=\"$grad\">$grad</label>";
}


?>
</body>
</html>