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
No comments posted yet
Your Answer:
Login to answer
310
23
Other forums
Problem in String replace program's output
Hi all,
I was trying to make a program which accepts a string and replaces it with another stri
Help with parsing this html
Hi,
I've got some html i just need a couple of strings from.. argh, it's freaking me out. I've t
timed header image rotation
I have a joomla site and I was trying to setup a rotating image based on timing NOT just refreshing
Gaining access to Drop Down Menu Variable
code is below, I am creating a drop down menu. I want to echo the value selected in the drop down me
PHP Array quick help
I need
$_SESSION{'username'} to be like this:
if $_SESSION['username'] = "gay
Rand() help needed
Hi all,
Can someone explain and give me a quick example of how I would go about this?
Call to undefined function mysql_fetch_accoc()
New to php/mysql coding. What's wrong with this sequence, or am I
just not seeing to obvious?
problem with array - multilingual page
this is my test page :
Code: <?php
if(isset($_GET['lang'])) {
if($_GET['la
New Search Engine problem
Hey everyone,
I have a ZIP Code Radius search engine already functional. it displays all of t
Paypal
Hi all,
I have an advanced basic knowledge of php
I want to try something new for a s