Php License Key System Github [extra Quality] Jun 2026

CREATE TABLE `licenses` ( `id` INT AUTO_INCREMENT PRIMARY KEY, `license_key` VARCHAR(64) NOT NULL UNIQUE, `status` ENUM('active', 'expired', 'suspended') DEFAULT 'active', `max_instances` INT DEFAULT 1, `expires_at` DATETIME NOT NULL, `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); CREATE TABLE `license_activations` ( `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 ); Use code with caution. 2. The Verification API (Server Side)

Never store the master list of license keys within the client code itself, as users can easily decompile or read local PHP files. Step 1: Designing the Central Database

?> </code></pre> <h3><code>api/generate.php</code></h3> <pre><code class="language-php"><?php require_once '../includes/config.php'; require_once '../includes/License.php';

$token = Licensing::issueToken($license, $usage, ['ttl_days' => 7]);

require_once 'src/LicenseManager.php'; $license = new LicenseManager('YOUR_API_KEY'); if (!$license->isValid($_POST['user_key'])) die("Invalid License. Please purchase one at yourbrand.com."); Use code with caution. php license key system github

Create a secure endpoint ( validate.php ) on your server. It should accept POST requests containing the license key and the domain attempting activation.

licenseKey = trim($key); $this->currentDomain = $_SERVER['SERVER_NAME'] ?? 'localhost'; public function validate() $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $this->gistUrl); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_USERAGENT, 'PHP-License-Manager'); curl_setopt($ch, CURLOPT_TIMEOUT, 10); $response = curl_exec($ch); $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); if ($httpCode !== 200 // Usage Example try $validator = new LicenseValidator('LIC-8392-X921'); if ($validator->validate()) echo "License verified successfully. Access granted."; else echo "Invalid, expired, or domain-mismatched license key."; exit; catch (Exception $e) echo "Error: " . $e->getMessage(); Use code with caution. Implementing Automated Updates via GitHub Releases

header('Content-Type: application/json');

A naive system checks $_POST['key'] == DB('key') . A hacker can simply modify your PHP code to return true; . Use IonCube encoding, or better, offload critical logic to the remote server (e.g., don't just check a flag; fetch actual data from the server). CREATE TABLE `licenses` ( `id` INT AUTO_INCREMENT PRIMARY

php artisan licensing:keys:make-root php artisan licensing:keys:issue-signing --kid signing-key-1

LicenseGate is a modern, open-source licensing tool designed for developers who need more than just a key generator.

If commercial encoders are too expensive, use open-source obfuscators to scramble variable names and control structures. Remote Code Execution (SaaS Model) Do not store core business logic on the client server.

false, 'message' => 'Invalid request method.']); exit; $licenseKey = $_POST['license_key'] ?? ''; $domain = $_POST['domain'] ?? ''; $productId = $_POST['product_id'] ?? ''; if (empty($licenseKey) || empty($domain) || empty($productId)) echo json_encode(['success' => false, 'message' => 'Missing required fields.']); exit; // Database Connection (Mocked for illustration) $pdo = new PDO('mysql:host=localhost;dbname=licensing', 'user', 'pass'); // 1. Verify License existence and status $stmt = $pdo->prepare("SELECT * FROM licenses WHERE license_key = ? AND product_id = ?"); $stmt->execute([$licenseKey, $productId]); $license = $stmt->fetch(PDO::FETCH_ASSOC); if (!$license) echo json_encode(['success' => false, 'message' => 'Invalid license key.']); exit; if ($license['status'] !== 'active' || strtotime($license['expires_at']) < time()) echo json_encode(['success' => false, 'message' => 'License has expired or is suspended.']); exit; // 2. Check Activation Instances $stmt = $pdo->prepare("SELECT COUNT(*) FROM license_activations WHERE license_id = ?"); $stmt->execute([$license['id']]); $currentActivations = $stmt->fetchColumn(); // 3. Check if current domain is already activated $stmt = $pdo->prepare("SELECT * FROM license_activations WHERE license_id = ? AND domain = ?"); $stmt->execute([$license['id'], $domain]); $alreadyActivated = $stmt->fetch(); if (!$alreadyActivated) if ($currentActivations >= $license['max_instances']) echo json_encode(['success' => false, 'message' => 'Activation limit reached.']); exit; // Register new activation $stmt = $pdo->prepare("INSERT INTO license_activations (license_id, domain) VALUES (?, ?)"); $stmt->execute([$license['id'], $domain]); echo json_encode([ 'success' => true, 'message' => 'License validated successfully.', 'expires_at' => $license['expires_at'] ]); Use code with caution. Step 3: Integrating the Client-Side Verification Step 1: Designing the Central Database

If you only need a tool to generate secure keys rather than manage them, this is a great library. Simple, secure key generation.

php-license-key-system/ ├── api/ │ ├── generate.php │ ├── validate.php │ └── status.php ├── database/ │ └── license.sql ├── includes/ │ ├── config.php │ └── License.php ├── examples/ │ ├── client-example.php │ └── admin-generate.php └── README.md

Implementing a license key system provides several benefits, including: