Codice PHP:
<?php
session_start();
$_SESSION['a'] = $_POST['a'];
$_SESSION['b'] = $_POST['b'];
?>
<form id="form1" name="form1" method="post" action="modifica.php">
<label>
<div align="center">
<input name="ciccio" type="hidden" id="ciccio" value="<?php echo $a;?>" />
<input type="submit" name="Submit" value="Invia" />
</div>
</label>
</form>
<form id="form2" name="form2" method="post" action="modifica.php">
<label>
<div align="center">
<input name="cicci2" type="hidden" id="cicci2" value="<?php echo $b;?>" />
<input type="submit" name="Submit2" value="Invia" />
</div>
</label>
</form>
o effettui l'assegnazione oppure effettui la stampa..