Página Web con envío de datos por Dreamweaver

[bouake2]

Y aquí el código de la pág ventas (que es pag de acceso restringido), 1ª parte:

<?php require_once('Connections/empresa.php'); ?>
<?php
//initialize the session
if (!isset($_SESSION)) {
session_start();
}

// ** Logout the current user. **
$logoutAction = $_SERVER['PHP_SELF']."?doLogout=true";
if ((isset($_SERVER['QUERY_STRING'])) && ($_SERVER['QUERY_STRING'] != "")){
$logoutAction .="&". htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_GET['doLogout'])) &&($_GET['doLogout']=="true")){
//to fully log out a visitor we need to clear the session varialbles
$_SESSION['MM_Username'] = NULL;
$_SESSION['MM_UserGroup'] = NULL;
$_SESSION['PrevUrl'] = NULL;
unset($_SESSION['MM_Username']);
unset($_SESSION['MM_UserGroup']);
unset($_SESSION['PrevUrl']);

$logoutGoTo = "index.php";
if ($logoutGoTo) {
header("Location: $logoutGoTo");
exit;
}
}
?>
<?php
if (!isset($_SESSION)) {
session_start();
}
$MM_authorizedUsers = "";
$MM_donotCheckaccess = "true";

// *** Restrict Access To Page: Grant or deny access to this page
function isAuthorized($strUsers, $strGroups, $UserName, $UserGroup) {
// For security, start by assuming the visitor is NOT authorized.
$isValid = False;

// When a visitor has logged into this site, the Session variable MM_Username set equal to their username.
// Therefore, we know that a user is NOT logged in if that Session variable is blank.
if (!empty($UserName)) {
// Besides being logged in, you may restrict access to only certain users based on an ID established when they login.
// Parse the strings into arrays.
$arrUsers = Explode(",", $strUsers);
$arrGroups = Explode(",", $strGroups);
if (in_array($UserName, $arrUsers)) {
$isValid = true;
}
// Or, you may restrict access to only certain users based on their username.
if (in_array($UserGroup, $arrGroups)) {
$isValid = true;
}
if (($strUsers == "") && true) {
$isValid = true;
}
}
return $isValid;
}

$MM_restrictGoTo = "error_ingreso.php";
if (!((isset($_SESSION['MM_Username'])) && (isAuthorized("",$MM_authorizedUsers, $_SESSION['MM_Username'], $_SESSION['MM_UserGroup'])))) {
$MM_qsChar = "?";
$MM_referrer = $_SERVER['PHP_SELF'];
if (strpos($MM_restrictGoTo, "?")) $MM_qsChar = "&";
if (isset($_SERVER['QUERY_STRING']) && strlen($_SERVER['QUERY_STRING']) > 0)
$MM_referrer .= "?" . $_SERVER['QUERY_STRING'];
$MM_restrictGoTo = $MM_restrictGoTo. $MM_qsChar . "accesscheck=" . urlencode($MM_referrer);
header("Location: ". $MM_restrictGoTo);
exit;
}
?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
if (PHP_VERSION < 6) {
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
}

$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
break;
}
return $theValue;
}
}

$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
$insertSQL = sprintf("INSERT INTO ventas (Factura, Nombre, Telefono, Direccion, Producto, IdCliente, IdProducto, FormaPago, Cheque, Cantidad, Total) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)",
GetSQLValueString($_POST['Factura'], "int"),
GetSQLValueString($_POST['Nombre'], "text"),
GetSQLValueString($_POST['Telefono'], "text"),
GetSQLValueString($_POST['Direccion'], "text"),
GetSQLValueString($_POST['Producto'], "text"),
GetSQLValueString($_POST['IdCliente'], "int"),
GetSQLValueString($_POST['IdProducto'], "int"),
GetSQLValueString($_POST['FormaPago'], "text"),
GetSQLValueString($_POST['Cheque'], "double"),
GetSQLValueString($_POST['Cantidad'], "double"),
GetSQLValueString($_POST['Total'], "double"));

mysql_select_db($database_empresa, $empresa);
$Result1 = mysql_query($insertSQL, $empresa) or die(mysql_error());
}

$colname_usuario = "-1";
if (isset($_SESSION['MM_Username'])) {
$colname_usuario = $_SESSION['MM_Username'];
}
mysql_select_db($database_empresa, $empresa);
$query_usuario = sprintf("SELECT Usuario FROM clientes WHERE Usuario = %s", GetSQLValueString($colname_usuario, "text"));
$usuario = mysql_query($query_usuario, $empresa) or die(mysql_error());
$row_usuario = mysql_fetch_assoc($usuario);
$totalRows_usuario = mysql_num_rows($usuario);

mysql_select_db($database_empresa, $empresa);
$query_ventas = "SELECT * FROM ventas";
$ventas = mysql_query($query_ventas, $empresa) or die(mysql_error());
$row_ventas = mysql_fetch_assoc($ventas);
$totalRows_ventas = mysql_num_rows($ventas);
?>