: A utility to create random, unique strings based on specific templates (e.g., AA99-9A9A-A9A9 Activation Server
Never rely solely on values from $_SERVER (e.g., HTTP_HOST ) for domain validation, because these can be modified by the user. Instead, send a cryptographically signed token or a pre‑shared secret along with the domain. As one Stack Overflow comment aptly puts it: “Anything that needs to be secured has to be on your server, not the customer’s machine.”
Handles machine fingerprints, floating licenses, and activation/validation endpoints. rafaelgou/padl Application Licensing
Before diving into specific open-source tools, it helps to understand what you’re looking for. A solid licensing solution for PHP should support: php license key system github
A is no longer a luxury but a necessity for commercial PHP developers. GitHub offers an incredible starting point, from the cryptographic rigor of php-license-manager to the simplicity of custom cURL scripts.
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).
This is a central dashboard where you manage products and keys. : A utility to create random, unique strings
use Dev3bdulrahman\LicenseManager\LicenseChecker;
| Feature | Importance | What to Look For | |---------|------------|------------------| | | Critical | Use of openssl_encrypt , RSA signing, or HMAC; avoidance of simple MD5 or base64 encoding. | | Domain/URL Binding | High | Code that verifies the current domain against a stored list or a hash of the domain. | | Offline Validation | Medium | The ability to validate a key without an internet connection (using precomputed signatures). | | Time-limited Licenses | Medium | Expiry date checking, preferably using a trusted timestamp server or a signed expiration claim. | | Trial Periods | Low | Feature flags that allow full functionality for N days without a key. | | Revocation/Blacklisting | High | A mechanism to fetch a remote blacklist or check a local cache against an API endpoint. |
If you sell via WordPress, GitHub features various integration scripts to connect your distributed code directly to WooCommerce API endpoints. A naive system checks $_POST['key'] == DB('key')
The customer's application must send the key back to your server for verification.
Do you need assistance setting up ?
Ensures only paying customers can access full features or updates.