Php License Key System Github Apr 2026

class LicenseGenerator { private $db;

-- License domains table (for domain restrictions) CREATE TABLE IF NOT EXISTS license_domains ( id INT AUTO_INCREMENT PRIMARY KEY, license_id INT NOT NULL, domain VARCHAR(255) NOT NULL, activated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, FOREIGN KEY (license_id) REFERENCES licenses(id) ON DELETE CASCADE, UNIQUE KEY unique_domain_license (license_id, domain), INDEX idx_domain (domain) );

1. **HTTPS Required**: Always use HTTPS in production 2. **API Authentication**: Implement proper JWT or OAuth for admin endpoints 3. **Rate Limiting**: Add rate limiting to prevent abuse 4. **Regular Backups**: Backup the license database regularly 5. **Monitoring**: Monitor license validation logs for suspicious activity php license key system github

echo json_encode($result); <?php // public/example-client.php class LicenseClient { private $apiUrl; private $licenseKey; private $domain; private $activationCode; private $cacheFile;

This system provides a solid foundation that you can extend based on your specific requirements, such as adding hardware locking, feature flags, or integration with payment processors. </code></pre> class LicenseGenerator { private $db; -- License domains

public function getConnection() { return $this->connection; }

private function __construct() { try { $this->connection = new PDO( "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8mb4", DB_USER, DB_PASS, [ PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false ] ); } catch (PDOException $e) { die("Database connection failed: " . $e->getMessage()); } } **Rate Limiting**: Add rate limiting to prevent abuse 4

/** * Validate domain */ private function validateDomain($licenseId, $domain) { $sql = "SELECT COUNT(*) as count FROM license_domains WHERE license_id = :license_id AND domain = :domain"; $stmt = $this->db->prepare($sql); $stmt->execute([ ':license_id' => $licenseId, ':domain' => $domain ]); $result = $stmt->fetch(); return $result['count'] > 0; }

public static function getInstance() { if (self::$instance === null) { self::$instance = new self(); } return self::$instance; }

// Authentication check (you should implement proper auth) $apiKey = $_SERVER['HTTP_X_API_KEY'] ?? null; if ($apiKey !== 'your-admin-api-key') { http_response_code(401); echo json_encode(['error' => 'Unauthorized']); exit; }

// License settings define('MAX_ACTIVATION_ATTEMPTS', 5); define('VALIDATION_TIMEOUT_HOURS', 24); <?php // src/Database.php class Database { private static $instance = null; private $connection;