login.php

<?php # Script 18.8 - login.php
// This is the login page for the site.
require('includes/config.inc.php');
$page_title = 'Login';
include('includes/header.html');
echo "COOKIE TEST"; //Debugging

setcookie('COOKIE_TEST', true, time()+3600, '/', '', 0, 0);

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    require(MYSQL);
    // Validate the email address:
    if (!empty($_POST['email'])) {
        $e = mysqli_real_escape_string($dbc, $_POST['email']);
    } else {
        $e = FALSE;
        echo '<p class="error">You forgot to enter your email address!</p>';
    }
    // Validate the password:
    if (!empty($_POST['pass'])) {
        $p = trim($_POST['pass']);
    } else {
        $p = FALSE;
        echo '<p class="error">You forgot to enter your password!</p>';
    }
    if ($e && $p) { // If everything's OK.
        // Query the database:
        $q = "SELECT user_id, first_name, user_level, pass FROM users WHERE email='$e' AND active IS NULL";
        $r = mysqli_query($dbc, $q) or trigger_error("Query: $q\n<br>MySQL Error: " . mysqli_error($dbc));
        if (@mysqli_num_rows($r) == 1) { // A match was made.
            // Fetch the values:
            list($user_id, $first_name, $user_level, $pass) = mysqli_fetch_array($r, MYSQLI_NUM);
            mysqli_free_result($r);
            // Check the password:
            if (password_verify($p, $pass)) {
                // Store the info in the session:
                $_SESSION['user_id'] = $user_id;
                $_SESSION['first_name'] = $first_name;
                $_SESSION['user_level'] = $user_level;
                mysqli_close($dbc);
                // Redirect the user:
                $url = BASE_URL . 'index.php'; // Define the URL.
                ob_end_clean(); // Delete the buffer.
                header("Location: $url");
                exit(); // Quit the script.
            } else {
                echo '<p class="error">Either the email address and password entered do not match those on file or you have not yet activated your account.</p>';
            }
        } else { // No match was made.
            echo '<p class="error">Either the email address and password entered do not match those on file or you have not yet activated your account.</p>';
        }
    } else { // If everything wasn't OK.
        echo '<p class="error">Please try again.</p>';
    }
    mysqli_close($dbc);
} // End of SUBMIT conditional.
?>

<h1>Login</h1>
<p>Your browser must allow cookies in order to log in.</p>
<form action="login.php" method="post">
	<fieldset>
	<p><strong>Email Address:</strong> <input type="email" name="email" size="20" maxlength="60"></p>
	<p><strong>Password:</strong> <input type="password" name="pass" size="20"></p>
	<div align="center"><input type="submit" name="submit" value="Login"></div>
	</fieldset>
</form>

<?php include('includes/footer.html'); ?>