You host your app; Keygen handles the licensing server. This is ideal if you hate server management. 4. Simple PHP License (By: jenssegers) Repo: laravel-license (Archived but influential)
<?php // generate.php function generateLicenseKey() { return strtoupper(substr(bin2hex(random_bytes(16)), 0, 16) . '-' . substr(bin2hex(random_bytes(8)), 0, 8)); } $key = generateLicenseKey(); // Insert into database... echo "New License: " . $key; ?> Create api/validate.php on your server.
// Check expiry if (new DateTime($license['expires_at']) < new DateTime()) { echo json_encode(['valid' => false, 'reason' => 'Expired']); exit; } php license key system github
For PHP developers, GitHub is a treasure trove of scripts, libraries, and full-fledged systems to handle license generation, validation, and management. But navigating these resources requires understanding the architecture of a secure licensing system.
if ($http_code === 200) { $data = json_decode($response, true); return $data['valid'] ?? false; } return false; } You host your app; Keygen handles the licensing server
<?php header('Content-Type: application/json'); $input = json_decode(file_get_contents('php://input'), true); $licenseKey = $input['license_key'] ?? ''; $domain = $_SERVER['HTTP_HOST']; // Basic domain binding // Query DB $stmt = $pdo->prepare("SELECT * FROM licenses WHERE license_key = ?"); $stmt->execute([$licenseKey]); $license = $stmt->fetch();
CREATE TABLE licenses ( id INT AUTO_INCREMENT PRIMARY KEY, license_key VARCHAR(64) UNIQUE, customer_name VARCHAR(100), product_id INT, status ENUM('valid', 'invalid', 'expired'), expires_at DATETIME, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); This PHP script generates a unique, random key. echo "New License: "
echo json_encode(['valid' => true, 'tier' => 'premium']); Inside the PHP app you are selling.