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
310 Like 23 Dislike
Previous forums Next forums
Other forums

Create or replace package is ending ORA-21700
Database 9.2.0., patch 8 (9.2.0.8.0).
I trying run
create or replace package ....etc.

Help If user voted, block them
On my Prayer request site, i let users Click a button to Pray for somone that has posted a pray, i g

Unable to retreve the values from Mysql Query
Hi,

Here is the php code that I have, Query is running properly in phpmyadmin and is resu

newbie question about multiple queries
hi everyone,
I'm sorry to ask such a basic question, but I'm young and trying to learn php on my

PHP Cannot redeclare class
I have 6 files, and two of them do not seem to want to play well. I keep getting a "Cannot rede

C++ Http request?
Code: string Response = "LOGIN_UNSUCCESSFUL"; System.Net.WebRequest request = Sy

Checking if field is empty AND using !is_numeric
Hi lads,

Need to be able to display an error message (using isset?) that says "Cant lea

User input in to variable
Hi all,

I'm sure this is very easy but I'm having another brain freeze!

At the end of

Displaying Multidimensional Arrays...about to put my head in a vice, PLEASE HELP
I am fairly new to PHP and MySQL and I have a problem which I have been trying to resolve for days.

[RESOLVED] Socket/Port remains open after app crashes
I'm having this problem with a networked app in vb.net.

If the program exits normally the por

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