“PHP obtient les deux premiers paragraphes” Réponses codées

PHP obtient les deux premiers paragraphes

$str = "<p>This is one</p><p>This is two</p><p>This is three</p>";
$pattern="/(<p[^>]*>(.*)<\/p>){2}/isU";
preg_match($pattern,$str,$matches);
echo htmlentities($matches[0]);