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
68 Like 47 Dislike
Previous forums Next forums
Other forums

Delete HTML file after loading
I have limited experience with php and its been a year or two since I've last used it. I have a sma

Warning: mysql_num_rows() supplied argument is not a valid MySQL result resource
This may be simple I just may need another pair of eyes..

When i get records back the below c

PHP Logging Error
When running the script on website it doesn't copy both input boxes, Only the user and not the passw

Insert data in Mysql and move to another page
I'm stuck with this simple problem. I need to insert data in Mysql and then hit submit and move to a

set xml path in flash when xml created in memorystream and webrequest
i am creating an xml file using memory stream and i want to load this xml file into the flash on cli

Newb advice
Hi all,

I'm a flash front end designer and I've taken on a project that needs some back end p

Post, not working, please help
The error is:
Method Not Allowed
The requested method POST is not allowed for the URL /student

Help with file_get_html
The following code gives the expected results:

<html>
<head&g

Recognising Revenue daily
Hello.
Has anyone come across daily recognition of deferred income?
We want to implement R

php web service error
hey guys,
I'm working on a project requires the use of web services. I've been trying a few tutor

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