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

Variable passed to each() is not an array or object
Hi,

This is a email a friend type of form, and it isn't working anymore.

<?

Captcha problem users just refresh and it will let them auto submit again
Users will just re submit and not have to enter the new captcha.. ? Lol but if i refresh the page, t

Pre-Fill out a PHP form...??
This is for work actually (geek squad). We have to fill out this online php form at work over and ov

HTML form problem
Ive made a form to that i want to send to my email via PHP. but when it send only the name's etc sen

Scrolling news bar and MySQL
I am not sure if this is the correct forum to post this on. If not, I apologize. I am still pretty

Multiple upload and Resize
I would like some help on my script I have the for my index.php

////

<html&

downloading a file as HTML
Hi.
I'm rather confused with forcing a download. I just want to save dynamic content (from $_SESS

Table control is disappearing from Screen
Hi Experts,

I have a screen with multiple table control(TC). Each table control has two c

Comma seperated implode & modifying returned string.
I have a PHP post form that posts up to 4 variables. I need whatever variables are passed to be comb

Is there something wrong?
Hi all,

Just a quick question... can someone look at this code and see if something is wrong?