Php License Key System Github May 2026

$required = ['product_id', 'customer_name', 'customer_email', 'license_type']; foreach ($required as $field) { if (empty($data[$field])) { http_response_code(400); echo json_encode(['error' => "Missing field: {$field}"]); exit; } }

// Usage example $client = new LicenseClient('https://your-license-server.com/api', 'YOUR-LICENSE-KEY', $_SERVER['HTTP_HOST']); $validation = $client->checkLicense(); php license key system github

php-license-key-system/ ├── config/ │ └── database.php ├── src/ │ ├── License.php │ ├── LicenseGenerator.php │ ├── LicenseValidator.php │ └── Database.php ├── api/ │ ├── generate.php │ ├── validate.php │ ├── activate.php │ └── deactivate.php ├── public/ │ └── example-client.php ├── sql/ │ └── schema.sql └── README.md 1. Database Schema ( sql/schema.sql ) CREATE DATABASE IF NOT EXISTS license_system; USE license_system; -- Licenses table CREATE TABLE IF NOT EXISTS licenses ( id INT AUTO_INCREMENT PRIMARY KEY, license_key VARCHAR(64) UNIQUE NOT NULL, product_id VARCHAR(50) NOT NULL, customer_name VARCHAR(100), customer_email VARCHAR(100), license_type ENUM('trial', 'monthly', 'yearly', 'perpetual') DEFAULT 'monthly', max_domains INT DEFAULT 1, status ENUM('active', 'inactive', 'expired', 'suspended') DEFAULT 'active', created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, expires_at TIMESTAMP NULL, last_validated_at TIMESTAMP NULL, INDEX idx_license_key (license_key), INDEX idx_status (status), INDEX idx_expires_at (expires_at) ); 30 : ($licenseType === 'monthly'

/** * Validate with remote server */ private function validateWithServer() { $ch = curl_init($this->apiUrl . '/validate.php'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([ 'license_key' => $this->licenseKey, 'domain' => $this->domain, 'activation_code' => $this->activationCode ])); curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']); curl_setopt($ch, CURLOPT_TIMEOUT, 10); $response = curl_exec($ch); $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); if ($httpCode !== 200) { return ['valid' => false, 'error' => 'License server error']; } return json_decode($response, true); } $expiresAt = date('Y-m-d H:i:s'

/** * Generate a unique license key */ public function generateLicenseKey($productId, $customerName, $customerEmail, $licenseType, $maxDomains = 1, $expiryDays = null) { // Generate unique license key $licenseKey = $this->createLicenseKey($productId); // Calculate expiry date $expiresAt = null; if ($expiryDays !== null) { $expiresAt = date('Y-m-d H:i:s', strtotime("+{$expiryDays} days")); } elseif ($licenseType !== 'perpetual') { $duration = $licenseType === 'trial' ? 30 : ($licenseType === 'monthly' ? 30 : 365); $expiresAt = date('Y-m-d H:i:s', strtotime("+{$duration} days")); } // Insert into database $sql = "INSERT INTO licenses (license_key, product_id, customer_name, customer_email, license_type, max_domains, expires_at) VALUES (:license_key, :product_id, :customer_name, :customer_email, :license_type, :max_domains, :expires_at)"; $stmt = $this->db->prepare($sql); $stmt->execute([ ':license_key' => $licenseKey, ':product_id' => $productId, ':customer_name' => $customerName, ':customer_email' => $customerEmail, ':license_type' => $licenseType, ':max_domains' => $maxDomains, ':expires_at' => $expiresAt ]); // Log the action $this->logAction($this->db->lastInsertId(), 'license_generated', "License generated for {$customerEmail}"); return [ 'license_key' => $licenseKey, 'expires_at' => $expiresAt, 'license_type' => $licenseType ]; }

/** * Cache validation result */ private function cacheValidation($data) { file_put_contents($this->cacheFile, json_encode([ 'timestamp' => time(), 'data' => $data ])); }