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buyForm.php
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buyForm.php
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<?php
session_start();
if(!isset($_SESSION['user_email'])) {
header('Location: login.html');
}
$userEmail = $_SESSION['user_email'];
$userName = $_SESSION['user_name'];
$file = file_get_contents('./config.txt', FILE_USE_INCLUDE_PATH);
$str = preg_split("/[\s,\n]+/", $file);
$sql_host = $str[1];
$sql_user = $str[3];
$sql_password = $str[5];
$sql_db = $str[7];
$conn = mysqli_connect($sql_host, $sql_user, $sql_password, $sql_db);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" href="StyleSheet.css" />
<script type="text/javascript" src="jquery-2.1.0.min.js"></script>
<title>TV Trading Co., Ltd.</title>
</head>
<body>
<div id="title">
<h1>TV Trading Co., Ltd.</h1>stalking the beauty of trade since time immemorial .....
<div id="user_info">
<?php
echo ("
$userName
");
?>
</div>
</div>
<div id="menu">
<ul>
<li><a href="dashboard.php">Dashboard</a> |</li>
<li class="current_menu"><a href="trade.php"> Trade </a> |</li>
<li><a href="IPO.php"> IPO </a> |</li>
<li><a href="logout.php"> Logout</a> </li>
</ul>
</div>
<br />
<br />
<?php
if((strlen($_POST['company']) < 1) || (strlen($_POST['shares']) < 1) || (strlen($_POST['seller_email']) < 1)) {
header('Loaction: trade.php');
}
$company = $_POST['company'];
$shares = $_POST['shares'];
$seller_email = $_POST['seller_email'];
$query = "SELECT * FROM `seller_board` WHERE `company` = \"$company\" AND `email` = \"$seller_email\"";
$result = mysqli_query($conn, $query);
if(mysqli_num_rows($result) == 0) {
echo("<div id='transaction_status'><font color='red'>Transaction failed! No such entry in the seller board!</font></div>");
}
else{
$query1 = "SELECT `balance` FROM `users` WHERE `email` = \"$userEmail\"";
$result1 = mysqli_query($conn, $query1);
$row1 = mysqli_fetch_array($result1);
$balance = $row1['balance'];
$row = mysqli_fetch_array($result);
$share_price = $row['share_price'];
$seller_shares = $row['shares'];
$reqCash = $shares*$share_price;
if($shares > $seller_shares){
echo("<div id='transaction_status'><font color='red'>Transaction failed! Not enough shares to buy!</font></div>");
}
else {
if($balance > $reqCash) {
$query2 = "SELECT `company` FROM `shares_data` WHERE `email` = \"$userEmail\" AND `company` = \"$company\"";
$result2 = mysqli_query($conn, $query2);
if(mysqli_num_rows($result2)) {
$query3 = "UPDATE `shares_data` SET `shares` = `shares`+$shares WHERE `email` = \"$userEmail\" AND `company` = \"$company\"";
mysqli_query($conn, $query3);
#echo("<script>alert('Transaction Sucessfull!');</script>");
}
else {
$query3 = "INSERT INTO `shares_data` (email, company, shares) VALUES (\"$userEmail\", \"$company\", $shares)";
mysqli_query($conn, $query3);
#echo("<script>alert('Transaction Sucessfull!');</script>");
}
$query4 = "UPDATE `users` SET `balance` = `balance`-$reqCash WHERE `email` = \"$userEmail\"";
mysqli_query($conn, $query4);
if($shares < $seller_shares) {
$query5 = "UPDATE `seller_board` SET `shares` = `shares`-$shares WHERE `email` = \"$seller_email\" AND `company` = \"$company\"";
mysqli_query($conn, $query5);
}
else{
$query6 = "DELETE FROM `seller_board` WHERE `email` = \"$seller_email\" AND `company` = \"$company\"";
mysqli_query($conn, $query6);
}
$query7 = "UPDATE `users` SET `balance`=`balance`+$reqCash WHERE `email`=\"$seller_email\"";
mysqli_query($conn, $query7);
$query8 = "SELECT * FROM `shares_data` WHERE `email` = \"$seller_email\" AND `company` = \"$company\"";
$result8 = mysqli_query($conn, $query8);
$row = mysqli_fetch_array($result8);
$slrShrs = $row['shares'];
if($slrShrs == $shares) {
$query9 = "DELETE FROM `shares_data` WHERE `email` = \"$seller_email\" AND `company` = \"$company\"";
mysqli_query($conn, $query9);
}
else {
$query10 = "UPDATE `shares_data` SET `shares` = `shares`-$shares WHERE `email` = \"$seller_email\" AND `company` = \"$company\"";
mysqli_query($conn, $query10);
}
echo("<div id='transaction_status'><font color='green'>Transaction successful!</font></div>");
}
}
}
mysqli_close($conn);
?>
</body>
</html>