Update Database


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

Hi All,


I have a problem with this:
Did you know?Explore Trending and Topic pages for more stories like 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
No comments posted yet

Your Answer:

Login to answer
68 Like 47 Dislike
Previous forums Next forums
Other forums

Help, Base64 encoding url and decoding server side.
Hello everyone, i have a website with videos and games and also provide an embed code which people c

image upload script not working with png
The basic process of this php code is to take the submitted file, convert it to a small JPG thumbnai

When i am Canseling the Billing Document in VF11 I am getting Shortdump
Hi Experts

When i am Canseling the Billing Document in VF11 I am getting Shortdump.

Count of reciepients in php mailer
How can i sent a mail to large no of reciepients say 10,00,00 Using PHP MAILER

Preventing SQL Injection
I have a question about SQL Injection, In some of our code we use this: view plaincopy to clipboa

date function help
i need help with date function

Code: [Select]<!DOCTYPE HTML PUBLIC "-//W3C//DTD H

Simultaneous select/update/insert
Hi

How would I need to go about when 2 users update a single row simultaneous? And how would

query based on 2 conditions
I want to select if the doc_type is either s OR f but this doesn't work:

Code: [Select]$query

Help With editting and deleting form
Hallo !!

So look at this image :

http://img194.imageshack.us/img194/8272/snapshot5f.pn

Just cannot get 'area' to submit to db using same php code as already used
Basically all i have done is just modified some code and added an area section.
The form is allre

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash