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

chat
hello i'm amir i need a chat source code in asp.net 2.0 without Ajax. anybody can help me?

help need on ob_start()
Hi

I am a newbie in php, I have a code
Line number On/Off | Expand/Contract <?phpo

check if string contain only a-z/A-Z
Is where any way to check if string contains only a-z/A-Z, without writing an array with all possibl

Need help urgant
why down my code ony return one item instead of all the items selected.

$arr = array($date,$

Where do I put CRON code
So I've figured out alot about how to automatically run a php function. I can't figure out where to

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

insert/update functions for mysql, what do you think?
I am working on two really simple functions that automatically generate (and execute) insert and upd

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

preg_match logical error
Code: <?php
$s = file_get_contents("page.html");
preg_match('/<div cla

convert static html data into dynamic
hi all

i need to convert a website which has static above 2000 articles into dynamic and add