A minimal Laravel package that checks license keys against an external API. It is extremely easy to install and configure – just publish the configuration file, set your API endpoint and key details, and use the License class to verify a key.
require 'vendor/autoload.php';
While not a pure "self-hosted" GitHub project, Devolens provides a popular PHP SDK on GitHub for integrating their Licensing as a Service (LaaS) platform.
// Simple license generation function function generateLicenseKey($prefix = 'KEY') $parts = [ strtoupper(substr(md5(uniqid(mt_rand(), true)), 0, 5)), strtoupper(substr(md5(uniqid(mt_rand(), true)), 0, 5)), strtoupper(substr(md5(uniqid(mt_rand(), true)), 0, 5)), strtoupper(substr(md5(uniqid(mt_rand(), true)), 0, 5)) ]; return $prefix . '-' . implode('-', $parts); echo generateLicenseKey('MYAPP'); // Outputs: MYAPP-A1B2C-D3E4F-G5H6I-J7K8L Use code with caution. Phase 2: Validating the Key
Instead of building a licensing server from scratch, you can deploy or integrate existing open-source projects hosted on GitHub. Popular approaches include: php license key system github
Create a private GitHub Gist containing a JSON object of your active licenses.
## 🔧 Core PHP Files
Generate license keys with a secure random generator. Avoid predictable patterns or weak hashes. As noted in a Stack Overflow discussion, “Take the IP address, salt it with the client’s name, or a fixed string then use bcrypt.” For even better protection, use asymmetric encryption (RSA) – which is what does when storing license information on the end user’s machine.
[ Client Application ] <--- (Validates Key) ---> [ Licensing Server ] ^ | (Fetches Updates) v [ GitHub Repository ] A minimal Laravel package that checks license keys
It is important to remember that Because the user has the source code, a determined developer can always find the line of code that says if ($isValid) and change it to if (true) .
Building a licensing system requires handling cryptography, database management, and API calls. Using open-source projects on GitHub allows you to:
Use established libraries rather than creating your own encryption method.
Select > Personal Access Tokens > Fine-grained tokens . Phase 2: Validating the Key Instead of building
Instantly deactivate licenses of malicious actors. Top PHP License Key Systems on GitHub
echo json_encode(['success' => true, 'data' => $result]); ?> </code></pre> <h3><code>api/validate.php</code></h3> <pre><code class="language-php"><?php require_once '../includes/config.php'; require_once '../includes/License.php';
public function generate($productId, $email, $expiresDays, $domain = null) $licenseKey = bin2hex(random_bytes(16)) . '-' . strtoupper(bin2hex(random_bytes(4))); $expiresOn = date('Y-m-d', strtotime("+$expiresDays days"));
Older PHP applications needing a classic licensing system. How to Implement a License System: A Step-by-Step Guide