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<?php session_start() ?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Register an account - cflip.net forum</title>
<link rel="stylesheet" href="styles/style.css">
</head>
<body>
<?php include './includes/templates/header.php' ?>
<h2>Register an account</h2>
<form action="register.php" method="post">
<label for="user_name">Username: </label><br>
<input type="text" name="user_name"><br>
<label for="user_pass">Password: </label><br>
<input type="password" name="user_pass"><br>
<label for="user_pass_check">Re-enter password: </label><br>
<input type="password" name="user_pass_check"><br>
<input type="submit" name="submit">
</form>
<br>
<?php
include_once './includes/functions_user.php';
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$errors = array();
$user_name = "";
$user_pass = "";
if (empty($_POST['user_name'])) {
$errors[] = "You must provide a username.";
} else {
$user_name = $_POST['user_name'];
if (!preg_match("/^[a-zA-Z0-9_]*$/", $user_name)) {
$errors[] = "Username can only contain letters, numbers and underscores.";
}
if (strlen($user_name) > 30) {
$errors[] = "Your username must be 30 characters or less.";
}
if (username_exists($user_name) !== false) {
$errors[] = "The username '" . $user_name . "' has already been taken by another user.";
}
}
if (empty($_POST['user_pass'])) {
$errors[] = "You must provide a password.";
} else {
$user_pass = $_POST['user_pass'];
$pass_check = $_POST['user_pass_check'];
if (preg_match("/^[a-zA-Z0-9\W]*$/", $user_pass) === false) {
$errors[] = "Password contains invalid characters!";
}
if ($user_pass !== $pass_check) {
$errors[] = "The two passwords do not match.";
}
}
if (!empty($errors)) {
echo 'Please check the following problems: <ul>';
foreach ($errors as $err) {
echo '<li>' . $err . '</li>';
}
echo '</ul>';
} else {
$pass_hash = password_hash($user_pass, PASSWORD_DEFAULT);
register_user($user_name, $pass_hash);
echo 'Account successfully registered! You can now <a href="signin.php">sign in</a>';
}
}
?>
</body>
</html>
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