<html> inserisci numero per fare la somma: <form method="get"> <input name="somma" type="text" size="5"></input> <input name="somma1" type="text" size="5"></input> <!--<input name="receipt" type="text"></input> --> <input type="submit" value="somma"/> </form> </html> <?php include "libreria_classi.php"; $a = $_GET["somma"]; $b = $_GET["somma1"]; //echo($_GET["somma"]+$_GET["somma1"]); $n1 = new Numero($a); $n2 = new Numero($b); $ris = $n1->sommaOggetto($n2); echo $ris->getValore();