$error = true;
$error_messages[] = 'email is not set';
}
if (!isset($_POST['password'])) {
$error = true;
$error_messages[] = 'password is not set';
}
if (strlen($_POST['password']) < 3 || strlen($_POST['password']) > 30) {
$error_messages[] = 'Ivalid password length';
$error = true;
}
if (!filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
$error_messages[] = 'You have entered an invalid email';
$error = TRUE;
}
if (!CheckForValidData(strtolower($_POST['password']))) {
$error_messages[] = 'You have entered an invalid password';
$error = TRUE;
}
$email = $mysqli->real_escape_string(trim($_POST['email']));
$password = $mysqli->real_escape_string(trim($_POST['password']));
if (!$error) {
$sql = "SELECT email FROM users WHERE email = '" . $email . "'";
$query = $mysqli->query($sql);
$isExistUser = $query->num_rows >= 1 ? TRUE : FALSE;
if ($isExistUser) {
$error_messages[] = 'email already exist!';
$error = TRUE;
} else {
$sql = 'INSERT INTO users (email, password) VALUES ("' . $email . '", "' . md5($password) . '");';
$query = $mysqli->query($sql);
<div><input type="submit" value="Sign Up" name="register">
<input type="reset" value="Clear"></div>
</form><br>
<?php
if (isset($_POST['register'])) {
// Нормализация на данните
$username = strtolower(trim($_POST['username']));
$password = $_POST['password'];
$error = FALSE;
// Валидация на данните
if (!CheckForValidData($username)) {
echo '<div class="error">- You have entered an invalid name!</div>';
$error = TRUE;
}
if (!CheckForValidData($password)) {
echo '<div class="error">- You have entered an invalid password!</div>';
$error = TRUE;
}
if (!$error) {
// Извличане на името
$sql = "SELECT username, password FROM users WHERE username = '******'";
$query = mysqli_query($CONNECTION, $sql);
if (!HasErrorWithDataBase($query)) {
exit;
}
// Проверка за грешки
$isExistUser = mysqli_num_rows($query) >= 1 ? TRUE : FALSE;
// Връща броя намерени имена
if ($isExistUser) {
echo '<div class="error">- Username already exist!</div>';
<div><input type="submit" value="Sign Up" name="register">
<input type="reset" value="Clear"></div>
</form><br>
<?php
if (isset($_POST['register'])) {
// Нормализация на данните
$username = trim($_POST['username']);
$password = $_POST['password'];
$error = FALSE;
// Валидация на данните
if (!CheckForValidData(strtolower($username))) {
echo '<div class="error">- You have entered an invalid name!</div>';
$error = TRUE;
}
if (!CheckForValidData(strtolower($password))) {
echo '<div class="error">- You have entered an invalid password!</div>';
$error = TRUE;
}
if (!$error) {
// Извличане на името
$sql = "SELECT username, password FROM users WHERE username = '******'";
$query = mysqli_query($CONNECTION_USERS, $sql);
if (HasErrorWithDataBase($query)) {
exit;
}
// Проверка за грешки
$isExistUser = mysqli_num_rows($query) >= 1 ? TRUE : FALSE;
// Връща броя намерени имена
if ($isExistUser) {
echo '<div class="error">- Username already exist!</div>';
