Update Database

Posted on 16th Feb 2014 07:03 pm by admin

Hi All,


I have a problem with this:

Code: [Select]<?php
session_start();
include('../common/dbconnect.php');
$stock_id = $_GET['stock_id'];



$query='SELECT * FROM users_stocks WHERE user_id ="' . $_SESSION['user_id'] . '"';
$result = mysql_query($query, $conn) or die(mysql_error($conn));
$row = mysql_fetch_array($result);
extract($row);
$query1="SELECT t_val FROM stocks WHERE stock_id = '$stock_id'";
$result1 = mysql_query($query1, $conn) or die(mysql_error($conn));
$rows = mysql_fetch_array($result1);
extract($rows);
$query2="SELECT quant FROM users_stocks_details WHERE stock_id = '$stock_id' AND user_id ='" . $_SESSION['user_id'] . "'";
$result2 = mysql_query($query2, $conn) or die(mysql_error($conn));
$rows2 = mysql_fetch_array($result2);
extract($rows2);

//the values
$t = $row['total'];
$b = $row['bank'];
$t_val=$rows['t_val'];
$q = $_GET['quantity'];
$quant =$rows2['quant'];


//sums
$newb = $q * $t_val + $b;
$newt = $t + $newb;
$newquant = $quant - $q;

//the interesting bit

if ($q == 0)
{
echo "You Dont Have Any Stocks To Sell!";

}

if ($q > 0)

{
$updatebank = "UPDATE users_stocks SET bank = $newb WHERE user_id ='" . $_SESSION['user_id'] . "'";
$updatetotal = "UPDATE users_stocks SET total = $newt WHERE user_id ='" . $_SESSION['user_id'] . "'";
$updatequant = "UPDATE users_stocks_details SET quant = $newquant WHERE stock_id = '$stock_id' AND user_id ='" .$_SESSION['user_id']."'";


$showresults = "SELECT * FROM users_stocks WHERE user_id ='" . $_SESSION['user_id'] . "'";
$results = mysql_query($showresults, $conn) or die(mysql_error($conn));
$rrows = mysql_fetch_array($results);
extract($rrows);

echo "Thank you! You have succesfully sold $q stocks and you bank balance has incresed to $$newb, you have $newquant of these stocks left

";

}
?>
The total and bank updates work as they should, however the quantity of stocks does not decrease! Anyone see anything obvious?

Thanks

Your Answer:

Login to answer

Other forums

Php script to read msword file
hi,

I need to read a msword file and i want to print the contents in that word file.

i

Socket programming
Hello all,

I have a PHP socket script. GPS trackers connect to this socket. IMEI verification

$variable $variables type question
I need to be able to designate an array element dynamically, so I thought to use a variable variable

please fix the error
What is the error in the below code ???
Line number On/Off | Expand/Contract <?php

Upload, SSL and more php help
I recently just installed a ssl cert and do i use https for the whole site or just for the checkout.

Multiple if statements
Ok so seems basic but for some reason I'm not doing it right. What I want is to be able to have 2 se

Problem!
I have another problem, when i run this code i get this error "Parse error: syntax error, unexp

mail()
Hi all. I have a problem with emails. I am trying to set up a mail system where customers can subscr

Strange PHP/mySQL error ... am I just tired?
Code: <?

## CONNECT TO DB FUNCTION!
function ConnectTo($db2con)
{
$hostNam

images aren't rendering
I'm trying to call a JPG file from within PHP (in an effort to hide the actual JPG folder). The imag