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

Sendmail.php - heading error following check_input
Hi,

I would greatly appreciate some help? I am brand new to PHP and have been searching and e

What am I missing here? Help!
Hello all!. I can't seem to get this working right. Well - it renders right, but something is goin

SOAP Issue
Hi,

I am facing some understanding problem with SOAP basic.kindly recommend some SOAP expert.

Adding Outlook 2007 items via file upload
I am looking for a way to be able to attach an Outlook item (an email message) in an ASP.NET 3.5 app

why this query can delete duplicates ?
why this query can delete duplicates ? Anybody can give me the detailed explanation ?

Tha

Dynamic memory problem
Hey,

At the beginning of my code, I have this line:

Shape* gShape = 0;

Cannot Display Array from Select Statement + Login question
Hi,
I'm new to PHP but so far so goog. I was assigend a project and I'm very close to completion.

Creating XML with php
I need to creat an XML with php and have successfully produced a valid output.
The problem I hav

how to put the 0-100 numbers into 1.txt and 100-200 into 2.txt ?
how to put the 0-100 numbers into 1.txt and 100-200 into 2.txt and so on 200-300 into file 3.txt ?

How to make a input/output field with multiple lines
Hello.
I put a input/output field on the screen but I could not change height of it. I need to