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

Encrypt php code?
Is it possible to encrypt php code in files,
so that it displays a load of unreadable characters

str_replace help
I am thinking str_replace is my only option to filter outputs from my database to convert them to sa

change text color with a jQuery code
Hihow can I change the text in a asp:TextBox to a different color when I start typing using jQuery?I

php unable to sent email
Hi, guys, I try to send a email through php but unfortunately the mail unable to sent. Here is my co

batch file not building to webapps folder
Hello. I just started running Vista :P and can't seem to get my projects deployed. I found out how

WM transfer order: confirm different batch than proposed by system
Hi folks,

following scenario: we have a full WM with mixed batch numbers allowed in stora

Dynamic Array using glob?
Is there an easier way to do this?

I am trying to get create a dyamic array based on files wi

ImageCreate()
When I create an image and add text to it I want my text to be replaced with a PNG image, because th

Retrieving the 25 most recently added entries from all tables in a MySQL databas
Hello,

The code below works great. It creates a table that shows the 25 most recently added t

compile php5 with DOM
Hi,

I can't manage to compile php 5.3.0 from source on Windows to include DOM,
in spite of