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

Variables and Include
Code: [Select]<?php

$header = $_COOKIE['mss']['header'];
$body = $_COOKIE['mss']['b

I need some help with the IF command...
I have a large number of images in one section of my website with the .jpg format. I'm adding a bun

Log $_POST
How would i log submits on a form, by everyone? I want to then echo the number of submissions.

SuperCali PHP Event Calendar
does anyone have any experience with the SuperCali PHP Event Calendar? I could use some assistance

ereg_replace in Wordpress
Heya - so I'm working on this site: http://world-of-smiles.theportlandco.com/new-patients

The

PHP loop
Okay so I have several "articles" stored in a mysql database and am attempting to echo tho

Open link with largest int string first
I have the following links i would like to open either all at once or one-by-one. How would i procee

how to use two buttons with php
hi i have one form. there are three fields which are to be filled by the user. and then there are tw

Can php detect connection speed and thereafter swap out elements?
No code to post, lads, yet. Just looking for a yay or nay at this stage:

Can a php script be

Code Review - SQL and Insertion Attacks (Warning: Not for Newbs)
Hey guys,

Its been a while, I know. Use to love coming here to answer peoples questions, but