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gunnardgunnard
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added chapter 7
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9 files changed

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‎public/chapter7/dbconnect.php‎

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‎public/chapter7/first_session.php‎

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<?php
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// Start the session
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session_start();
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?>
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<!DOCTYPE html>
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<html>
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<body>
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<?php
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// Set session variables
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$_SESSION["firstname"] = "Foo";
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$_SESSION["username"] = "barFoo";
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echo "Session variables are set.";
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?>
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</body>
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</html>

‎public/chapter7/first_session2.php‎

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<?php
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// Start the session
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session_start();
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?>
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<!DOCTYPE html>
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<html>
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<body>
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<?php
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// Set session variables
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$_SESSION["firstname"] = "Foo";
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$_SESSION["username"] = "barFoo";
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echo "Session variables are set.";
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echo "<br />";
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var_dump($_SESSION);
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?>
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</body>
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</html>

‎public/chapter7/login.php‎

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<?php
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// to Start a PHP session
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session_start();
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?>
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<html>
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<body>
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<div class="container">
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<form method="post" action="">
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<div id="div_login">
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<h1>Login</h1>
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<div>
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<input type="text" class="textbox" id="first_name" name="first_name" placeholder="first_name" />
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</div>
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<div>
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<input type="password" class="textbox" id="password" name="password" placeholder="Password"/>
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</div>
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<div>
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<input type="submit" value="Submit" name="submit" id="submit" />
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</div>
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</div>
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</form>
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</div>
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<?php
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// DB Host name
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$host = "mysql-db";
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// DB User
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$user = "user";
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// DB Password
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$password = "pass";
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// Database name
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$db = "beginningPHP";
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$connection = mysqli_connect($host, $user, $password, $db);
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// If the connection fails
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if (!$connection) {
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// Display message and terminate script
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die("Connection failed: " . mysqli_connect_error());
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}
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// If the submit button is pressed
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if(isset($_POST['submit'])){
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// Escape special characters in a string
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$first_name = mysqli_real_escape_string($connection, $_POST['first_name']);
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$password = mysqli_real_escape_string($connection, $_POST['password']);
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// If username and password are not empty
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if ($first_name != "" && $password != ""){
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// Query database to find user with matching username and password
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$query = "select count(*) as countUser from users where first_name='".$first_name."' and password='".$password."'";
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// Store query result
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$result = mysqli_query($connection, $query);
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// Fetch row as associative array
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$row = mysqli_fetch_array($result);
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// Get number of rows
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$count = $row['countUser'];
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// If number of row is more than zero
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if($count > 0){
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// Set matched user as current user
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$_SESSION['first_name'] = $first_name;
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$_SESSION['timestamp'] = date("h:i:sa");
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// Display success message
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echo "You are logged in!";
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if (isset($_SESSION)) {
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echo "<br /><br />";
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print_r($_SESSION);
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}
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// Else if number of row is less than zero
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} else {
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// Display failed message
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echo "Error! Invalid first_name and password.";
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}
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}
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}
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?>
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</body>
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</html>

‎public/chapter7/remove_session.php‎

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<?php
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session_start();
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?>
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<!DOCTYPE html>
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<html>
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<body>
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<?php
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echo "Here are the variables:<br />";
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var_dump($_SESSION);
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echo "<br /><br />";
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// remove all session variables
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session_unset();
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echo "Here are the variables after session_unset:<br />";
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var_dump($_SESSION);
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echo "<br /><br />";
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// destroy the session
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session_destroy();
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echo "Here are the variables after session_destroy:<br />";
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var_dump($_SESSION);
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echo "<br /><br />";
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?>
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</body>
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</html>

‎public/chapter7/seedDB.php‎

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require_once('db.php');
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$mysqli = new mysqli($DB_HOST, $DB_USER, $DB_PASS, $DB_DATABASE);
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$query = "Select * from users";
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$result = $mysqli->query($query);
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if (!$result) {
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echo 'Creating table "USERS"';
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$query = 'create table IF NOT EXISTS users(
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id INT NOT NULL AUTO_INCREMENT,
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first_name VARCHAR(100) NOT NULL,
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last_name VARCHAR(40) NOT NULL,
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password VARCHAR(10) NOT NULL,
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created DATETIME NOT NULL ON UPDATE CURRENT_TIMESTAMP default current_timestamp,
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PRIMARY KEY ( id )
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)';
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$result = $mysqli->query($query);
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echo 'Seeing Users into table..1';
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$query = "INSERT INTO users (first_name,last_name) values ('tom','hanks')";
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$result = $mysqli->query($query);
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echo '..2';
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$query = "INSERT INTO users (first_name,last_name) values ('billy','mitchell')";
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$result = $mysqli->query($query);
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echo '..3<br />';
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$query = "INSERT INTO users (first_name,last_name) values ('mega','man')";
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$result = $mysqli->query($query);
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echo 'Users added<br />';
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$query = "Select * from users";
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$result = $mysqli->query($query);
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while ($row = $result->fetch_assoc()) {
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print $row['id'].' - '.$row['first_name'].' - '.$row['last_name'].' - '.$row['created'].'<br />';
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if ($result->num_rows == 0) {
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echo 'Seeing Users into table..1';
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$query = "INSERT INTO users (first_name,last_name,password) values ('tom','hanks','1234')";
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$result = $mysqli->query($query);
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echo '..2';
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$query = "INSERT INTO users (first_name,last_name,password) values ('billy','mitchell','1234')";
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$result = $mysqli->query($query);
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echo '..3<br />';
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$query = "INSERT INTO users (first_name,last_name,password) values ('mega','man','1234')";
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$result = $mysqli->query($query);
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echo 'Users added<br />';
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} else {
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echo "data already added<br /><br />";
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}
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} else {
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echo 'No Need';
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$query = "Select * from users";
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$result = $mysqli->query($query);
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while ($row = $result->fetch_assoc()) {
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print $row['id'].' - '.$row['first_name'].' - '.$row['last_name'].' - '. $row['password'].' - '.$row['created'].'<br />';
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}

‎public/chapter7/session_test.php‎

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<?php
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session_start();
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?>
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<!DOCTYPE html>
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<html>
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<body>
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<?php
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// Echo session variables that were set on previous page
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echo "Firstname is " . $_SESSION["firstname"] . ".<br>";
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echo "Username is " . $_SESSION["username"] . ".";
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?>
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</body>
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</html>

‎public/chapter7/showUsers.php‎

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‎public/chapter7/sql.sql‎

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