Questo il file update.php

codice:
<?php
session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<link href="../dataentry/css/css.css" rel="stylesheet" type="text/css">
<title>Cerca Commessa</title>
</head>
<body>
<?php
$id = $_REQUEST ['id'];
$veicolo = $_REQUEST['veicolo'];
$targa = $_REQUEST['targa']; 
$km = $_REQUEST['km'];
$telaio = $_REQUEST['telaio']; 
$cliente = $_REQUEST['cliente']; 
$indirizzo = $_REQUEST['indirizzo']; 
$piva = $_REQUEST['piva']; 
$tel = $_REQUEST['tel']; 
$int1 = $_REQUEST['int1'];
$int2 = $_REQUEST['int2'];
$int3 = $_REQUEST['int3'];
$int4 = $_REQUEST['int4']; 
$int5 = $_REQUEST['int5']; 
$int6 = $_REQUEST['int6'];
$int7 = $_REQUEST['int7']; 
$int8 = $_REQUEST['int8'];
$int9 = $_REQUEST['int9']; 
$int10 = $_REQUEST['int10'];
$int11 = $_REQUEST['int11'];
$int12 = $_REQUEST['int12']; 
$int13 = $_REQUEST['int13'];
$int14 = $_REQUEST['int14'];
$int15 = $_REQUEST['int15'];
$for1 = $_REQUEST['for1']; 
$for2 = $_REQUEST['for2'];
$for3 = $_REQUEST['for3'];
$for4 = $_REQUEST['for4'];
$for5 = $_REQUEST['for5'];
$for6 = $_REQUEST['for6'];
$for7 = $_REQUEST['for7']; 
$for8 = $_REQUEST['for8']; 
$for9 = $_REQUEST['for9']; 
$for10 = $_REQUEST['for10']; 
$for11 = $_REQUEST['for11']; 
$for12 = $_REQUEST['for12']; 
$for13 = $_REQUEST['for13']; 
$for14 = $_REQUEST['for14']; 
$for15 = $_REQUEST['for15']; 
$imp_1 = $_REQUEST['imp_1']; 
$imp_2 = $_REQUEST['imp_2']; 
$imp_3 = $_REQUEST['imp_3']; 
$imp_4 = $_REQUEST['imp_4']; 
$imp_5 = $_REQUEST['imp_5']; 
$imp_6 = $_REQUEST['imp_6']; 
$imp_7 = $_REQUEST['imp_7']; 
$imp_8 = $_REQUEST['imp_8']; 
$imp_9 = $_REQUEST['imp_9']; 
$imp_10 = $_REQUEST['imp_10']; 
$imp_11 = $_REQUEST['imp_11']; 
$imp_12 = $_REQUEST['imp_12']; 
$imp_13 = $_REQUEST['imp_13']; 
$imp_14 = $_REQUEST['imp_14']; 
$imp_15 = $_REQUEST['imp_15']; 
$totale = $_REQUEST['totale']; 
$n_tecnico = $_REQUEST['n_tecnico']; 
$data = $_REQUEST['data']; 


// inserisco le credenziali di accesso
$host = "";
$user = "";
$pass = "";
$database = "";


// mi connetto al DBMS
$myconn = mysql_connect($host, $user, $pass) or die('Errore...');


//Mi connetto al database
mysql_select_db($database, $myconn) or die('Errore...');


//Preparo la query di inserimento
$sql = "UPDATE CommesseOfficina SET veicolo = '$veicolo', targa = '$targa', km = '$km', telaio = '$telaio', cliente = '$cliente', indirizzo = '$indirizzo', piva = '$piva', telefono = '$telefono', int1 = '$int1', int2 = '$int2', int3 = '$int3', int4 = '$int4', int5 = '$int5', int6 = '$int6', int7 = '$int7', int8 = '$int8', int9 = '$int9', int10 = '$int10', int11 = '$int11', int12 = '$int12', int13 = '$int13', int14 = '$int14', int15 = '$int15', for1 = '$for1' , for2 = '$for2', for3 = '$for3', for4 = '$for4', for5 = '$for5', for6 = '$for6', for7 = '$for7', for8 = '$for8' , for9 = '$for9' , for10 = '$for10', for11 = '$for11', for12 = '$for12', for13 = '$for13', for14 = '$for14', for15 = '$for15', imp_1 = '$imp_1', imp_2 = '$imp_2', imp_3 = '$imp_3', imp_4 = '$imp_4', imp_5 = '$imp_5', imp_6 = '$imp_6', imp_7 = '$imp_7', imp_8 = '$imp_8', imp_9 = '$imp_9', imp_10 = '$imp_10', imp_11 = '$imp_11', imp_12 = '$imp_12', imp_13 = '$imp_13', imp_14 '$imp_14', imp_15 = '$imp_15', totale = '$totale', n_tecnico = '$n_tecnico', data = '$data'
WHERE id = '$_SESSION['id']'";


echo $sql;
exit;


// Lanciamo la query:
$result = mysql_query($sql);




// controllo l'esito
if (!$result) {
    die("Errore nella query $sql: " . mysql_error());
}


else
echo 'I dati da te inseriti sono stati correttamente registrati'; 
echo '</br>';
echo "<a href=\"InserisciCommessaOfficina.php\">Inserisci nuova commessa</a>"; 




// E chiudiamo la connessione a MySQL
mysql_close();


?>




</body>
</html>
riceve i dati da modifica.php

codice:
<?php
session_start();
$_SESSION['id'] = $_REQUEST[id];
echo "La tua sessione " . $_SESSION ['id'];
?>


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link href="../dataentry/css/css.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" type="text/css" href="../dataentry/css/ui-lightness/jquery-ui-1.10.4.css"></link>
<script type="text/javascript" src="js/somma.js"></script>
<script type="text/javascript" src="js/datapicker.js"></script>
<script type="text/javascript" src="js/jquery-1.10.2.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.10.4.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-i18n.js"></script>
<title>Commessa Officina</title>
</head>
<body>
<script type="text/javascript">
$(function(){
     $.datepicker.setDefaults( $.datepicker.regional[ "it" ] );
     $('.datepicker').datepicker();
});
</script>
<div id="container"> <!-- apro il div container -->
<?php
// inserisco le credenziali di accesso
$host = "";
$user = "";
$pass = "";
$database = "";


// mi connetto al DBMS
$myconn = mysql_connect($host, $user, $pass) or die('Errore...');


//Mi connetto al database
mysql_select_db($database, $myconn) or die('Errore...');






//Preparo la query di modifica
$sql = "SELECT * FROM CommesseOfficina WHERE id='$_SESSION[id]'";






// Lanciamo la query:
$result = mysql_query($sql);
$dati = mysql_fetch_assoc ($result);


$id = $dati ['id'];
$veicolo = $dati['veicolo'];
$targa = $dati['targa']; 
$km = $dati['km'];
$telaio = $dati['telaio']; 
$cliente = $dati['cliente']; 
$indirizzo = $dati['indirizzo']; 
$piva = $dati['piva']; 
$tel = $dati['tel']; 
$int1 = $dati['int1'];
$int2 = $dati['int2'];
$int3 = $dati['int3'];
$int4 = $dati['int4']; 
$int5 = $dati['int5']; 
$int6 = $dati['int6'];
$int7 = $dati['int7']; 
$int8 = $dati['int8'];
$int9 = $dati['int9']; 
$int10 = $dati['int10'];
$int11 = $dati['int11'];
$int12 = $dati['int12']; 
$int13 = $dati['int13'];
$int14 = $dati['int14'];
$int15 = $dati['int15'];
$for1 = $dati['for1']; 
$for2 = $dati['for2'];
$for3 = $dati['for3'];
$for4 = $dati['for4'];
$for5 = $dati['for5'];
$for6 = $dati['for6'];
$for7 = $dati['for7']; 
$for8 = $dati['for8']; 
$for9 = $dati['for9']; 
$for10 = $dati['for10']; 
$for11 = $dati['for11']; 
$for12 = $dati['for12']; 
$for13 = $dati['for13']; 
$for14 = $dati['for14']; 
$for15 = $dati['for15']; 
$imp_1 = $dati['imp_1']; 
$imp_2 = $dati['imp_2']; 
$imp_3 = $dati['imp_3']; 
$imp_4 = $dati['imp_4']; 
$imp_5 = $dati['imp_5']; 
$imp_6 = $dati['imp_6']; 
$imp_7 = $dati['imp_7']; 
$imp_8 = $dati['imp_8']; 
$imp_9 = $dati['imp_9']; 
$imp_10 = $dati['imp_10']; 
$imp_11 = $dati['imp_11']; 
$imp_12 = $dati['imp_12']; 
$imp_13 = $dati['imp_13']; 
$imp_14 = $dati['imp_14']; 
$imp_15 = $dati['imp_15']; 
$totale = $dati['totale']; 
$n_tecnico = $dati['n_tecnico']; 
$data = $dati['data'];   


// controllo l'esito
if (!$result) {
    die("Errore nella query $sql: " . mysql_error());
}


// E chiudiamo la connessione a MySQL
mysql_close();


?>

.....

</body>
</html>