Hello everyone,
I built a sample e-banking application as part of a project from my school. I wrote the statement below to update two tables from fields submitted from a form and also send a mail to the form owner. when i submit the form it redirects to the finale.php page but does not update the database at all..

The UPDATE statement is

$sqlupdate = " UPDATE client, `statement` SET client.account_balance = $balanceaftertransfer,client.checkcode = 1, statement.account_balance = $balanceaftertransfer, statement.statement_details = Online Transfer, statement.statement_credit = 0, statement.staement_debit = $amt2tra, statement.statement_date = CURDATE(), statement.client_id = $client_id
WHERE client.client_id = `statement`.client_id AND username = '".$_SESSION['MM_Username']."'";
mysql_query($sqlupdate ) ;

and the full post.php file is as shown below


<?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;
}

$MM_restrictGoTo = "log.php";
if (!((isset($_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
//To connect to database
include("Connections/bollingo.php");
$query_recordset = "SELECT *
FROM client, `statement`
WHERE client.client_id = `statement`.client_id AND username = '".$_SESSION['MM_Username']."'";

// Receiving variables
$pfw_ip= $_SERVER['REMOTE_ADDR'];
$client_id = $_POST['client_id'];
$accname = $_POST['accname'];
$avafortra = (int)$_POST['avafortra'];
$amt2tra = (int)$_POST['amt2tra'];
$email = $_POST['email'];
$mobile = $_POST['mobile'];
$tbname = $_POST['tbname'];
$tbbank = $_POST['tbbank'];
$tbbankac = $_POST['tbbankac'];
$tbbranch = $_POST['tbbranch'];
$tbswift = $_POST['tbswift'];

$balanceaftertransfer = $avafortra - $amt2tra;

//Sending Email to form owner
$pfw_header = "From: $email\n"
. "Reply-To: $email\n";
$pfw_subject = "Hello";
$pfw_email_to = "info@myownsite.com";
$pfw_message = "Visitor's IP: $pfw_ip\n"
. "Account Name: $accname\n"
;

mail($pfw_email_to, $pfw_subject ,$pfw_message ,$pfw_header ) ;

//updating database
$sqlupdate = " UPDATE client, `statement` SET client.account_balance = $balanceaftertransfer,client.checkcode = 1, statement.account_balance = $balanceaftertransfer, statement.statement_details = Online Transfer, statement.statement_credit = 0, statement.staement_debit = $amt2tra, statement.statement_date = CURDATE(), statement.client_id = $client_id
WHERE client.client_id = `statement`.client_id AND username = '".$_SESSION['MM_Username']."'";
mysql_query($sqlupdate ) ;

header("Location: finale.php");
?>