Like many modern development tools, PHP Tools usually operates on a subscription basis. When you buy a license, you are purchasing the right to use the software and receive updates for a set period (e.g., one year). Once the subscription expires, the software may continue to function, but you will lose access to new features, bug fixes, and technical support until the license is renewed.
+------------------------------------------------------------+ | 1-Year Active Subscription | | - Full access to all product updates and features | | - Continuous technical support | +------------------------------------------------------------+ │ ▼ +------------------------------------------------------------+ | Subscription Expires (No Renewal) | | - Keep using the version available 12 months prior | | - Lose access to newer versions and active support | +------------------------------------------------------------+ php tools for visual studio license key