From 38dc044fa72bdfa144ac0ab54521069004253790 Mon Sep 17 00:00:00 2001
From: Sorrel Harriet <s.harriet@gold.ac.uk>
Date: Fri, 4 Nov 2016 16:19:06 +0000
Subject: [PATCH] adding demo code for lecture
---
lab-5/vending-machine/index.php | 65 ++++++++++++++++++++++++++++
lab-5/vending-machine/sql/schema.sql | 28 ++++++++++++
2 files changed, 93 insertions(+)
create mode 100755 lab-5/vending-machine/index.php
create mode 100755 lab-5/vending-machine/sql/schema.sql
diff --git a/lab-5/vending-machine/index.php b/lab-5/vending-machine/index.php
new file mode 100755
index 0000000..843df65
--- /dev/null
+++ b/lab-5/vending-machine/index.php
@@ -0,0 +1,65 @@
+<?php
+// open a new MySQL database connection
+
+// define a connection 'handle'
+$link = mysqli_connect(
+ 'localhost',
+ 'sharr003',
+ 'password123',
+ 'sharr003_vendingmachine'
+);
+
+// check connection succeeded
+if (mysqli_connect_errno()) {
+ echo "Failed to connect to MySQL: " . mysqli_connect_error();
+}
+
+// create variable for page content HTML
+$content = "<h1>Hot Drinks Menu</h1>";
+
+// define the SQL query to run
+$sql = "SELECT name, code, price FROM DrinkOption ORDER BY code";
+
+// fetch records as a result-set
+$result = mysqli_query($link, $sql);
+
+// check query returned a result
+if ($result === false) {
+ echo mysqli_error($link);
+} else {
+ $content .= "<table>
+ <tbody>";
+ // fetch associative array
+ while ($row = mysqli_fetch_assoc($result)) {
+ $content .= "<tr>
+ <td>".$row['name']."</td>
+ <td>".$row['code']."</td>
+ <td> £".$row['price']."</td>
+ </tr>";
+ }
+ $content .= "</tbody></table>";
+ // free result set
+ mysqli_free_result($result);
+}
+
+?>
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+ <title>My First PHP Application</title>
+ </head>
+ <body>
+ <ul>
+ <li><a href="index.php">Home</a></li>
+ <li><a href="page2.php">Page 2</a></li>
+ </ul>
+
+ <?php
+ // Output value of $content variable
+ echo $content;
+ ?>
+
+ </body>
+</html>
diff --git a/lab-5/vending-machine/sql/schema.sql b/lab-5/vending-machine/sql/schema.sql
new file mode 100755
index 0000000..6c3dc41
--- /dev/null
+++ b/lab-5/vending-machine/sql/schema.sql
@@ -0,0 +1,28 @@
+DROP TABLE IF EXISTS Selection, DrinkOption;
+
+CREATE TABLE DrinkOption (
+ code CHAR(2) UNIQUE NOT NULL,
+ drink_name VARCHAR(25) NOT NULL,
+ price DECIMAL(4,2) DEFAULT 0.80,
+ milk BOOLEAN NOT NULL,
+ PRIMARY KEY (code)
+);
+
+CREATE TABLE Selection (
+ id INT AUTO_INCREMENT,
+ option_code CHAR(2) NOT NULL,
+ sugars ENUM('0','1','2') NOT NULL,
+ PRIMARY KEY (id),
+ FOREIGN KEY (option_code)
+ REFERENCES DrinkOption (code)
+);
+
+INSERT INTO DrinkOption VALUES
+('A','Black tea',DEFAULT,0),
+('B','White tea',DEFAULT,1),
+('C','Black coffee',DEFAULT,0),
+('D','White coffee',DEFAULT,1);
+
+INSERT INTO Selection VALUES
+(NULL, 'A', '1'),
+(NULL, 'D', '0');
--
GitLab