PHP Tutorial: Register and Login (User Account System) 3
Posted: Tue Aug 20, 2013 6:42 pm
I'm having troubles getting Users and Passwords to come up in the database. I can't figure out what is wrong with my code. I would be on the register.php page and when i try and register it would say "You are not logged in as "roxy503" Logout?"
Everything else seems to run and it brings me to the protected.php page of the site. I followed the tutorial pretty closely as well. Here's the code along with a screenshot database.
register.php
Everything else seems to run and it brings me to the protected.php page of the site. I followed the tutorial pretty closely as well. Here's the code along with a screenshot database.
register.php
<?php
include('core/init.inc.php');
$errors = array();
if (isset($_POST['username'], $_POST['password'], $_POST['repeat_password'])){
if (empty($_POST['username'])){
$errors[] = 'The username cannot be empty.';
}
if (empty($_POST['password']) || empty($_POST['repeat_password'])){
$errors[] = 'The password cannot be empty.';
}
if ($_POST['password'] !== $_POST['repeat_password']){
$errors[] = 'Password verification failed.';
}
if (user_exists($_POST['username'])){
$errors[] = 'The username you entered is already taken.';
}
if (empty($errors)){
add_user($_POST['username'], $_POST['password']);
$_SESSION['username'] = htmlentities($_POST['username']);
header('Location: protected.php');
die();
}
}
?>
<!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"/>
<!--<link rel="stylesheet" type="text/css" href="ext/css/style.css" />-->
<title></title>
</head>
<body>
<div>
<?php
if (empty($errors) === false){
?>
<ul>
<?php
foreach ($errors as $error) {
echo "<li>{$error}</li>";
}
?>
</ul>
<?php
}
?>
</div >
<form action="" method="post">
<p>
<label for="username">Username:</label>
<input type="text" name="username" id="username" value="<?php if (isset($_POST['username'])) echo htmlentities($_POST['username']) ?>" />
</p>
<p>
<label for="password">Password:</label>
<input type="password" name="password" id="password" />
</p>
<p>
<label for="repeat_password">Confirm Password:</label>
<input type="password" name="repeat_password" id="repeat_password" />
</p>
<p>
<input type="submit" value="Register" />
</p>
</from>
</body>
</html>
init.inc.php
<?php
session_start();
$exceptions = array('register','login');
$page = substr(end(explode('/', $_SERVER['SCRIPT_NAME'])), 0, -4);
if (in_array($page, $exceptions) === false){
if (isset($_SESSION['username']) === false){
header('Location: login.php');
die();
}
}
mysql_connect("sample_server","roxy503","sample_pass");
mysql_select_db('roxy503');
$path = dirname(__FILE__);
include("{$path}/inc/user.inc.php");
?>
user.inc.php
<?php
// Checks to see if the username exists.
function user_exists($user){
$user = mysql_real_escape_string($user);
$total = mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `user_name` = '{$user}'");
return (mysql_result($total, 0) == '1') ? true : false;
}
echo mysql_error();
// Checks if the Username and Password combination is valid.
function valid_credentials($user, $pass){
$user = mysql_real_escape_string($user);
$pass = sha1($pass);
$total = mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `user_name` = '{$user}' AND 'user_password' = '{$pass}'");
return (mysql_result($total, 0) == '1') ? true : false;
}
// Adds a user to the database.
function add_user($user, $pass){
$user = mysql_real_escape_string(htmlentities($user));
$pass = sha1($pass);
mysql_query("INSERT INTO `users` (`user_password`) VALUES ('{$user}', '{$pass}')");
}
?>