=== Plugin Compatibility Checker ===
Contributors: CompatShield
Tags: compatibility, plugin checker, php version, mysql compatibility, mariadb, database checker, wordpress 7, hosting compatibility, security, vulnerabilities, php compatibility, php 8.5, wordpress security, vulnerability scan, plugin scanner, php errors, php version checker, wordpress admin tools
Requires at least: 5.0
Tested up to: 7.0
Requires PHP: 7.2
Stable tag: 7.0.6
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

Scan and check your WordPress site for PHP, Database (MySQL/MariaDB), and Plugin compatibility to ensure safe upgrades to WordPress 7.0 and beyond.

== Description ==

The **Plugin Compatibility Checker** helps you keep your WordPress site stable and secure by scanning installed plugins for PHP, Database, and WordPress version compatibility.

**🆕 WordPress 7.0 Database Readiness**  
WordPress 7.0 introduces stricter database requirements (MySQL 8.0+ / MariaDB 10.6+). Many hosting environments still run older database versions which may silently block updates. This plugin now detects database compatibility and warns you before upgrading.

**$1/month License Required (Entry Plan)**  
You must subscribe to the CompatShield Portal ($1/month recurring) to obtain a **license key**. Once activated, you will be able to see plugin compatibility results (up to PHP 8.5) and database compatibility directly inside your WordPress admin.

**📺 Video Tutorial**  
Watch step-by-step how to activate your license & run your first scan:  
[youtube https://www.youtube.com/watch?v=PCxhJmO-Tb4]

**Quick Setup Steps**  
1) Subscribe → Get your license key from the Portal  
2) Add your domain inside the License tab  
3) Copy your License Key  
4) Paste License Key inside Plugin Settings in WP Admin  
5) Click **Validate License**  
6) Click **Save Settings**  
7) Go to Plugin Main Page → Click **Rescan**

**Pro Version (Upgrade)**  
Upgrading to Pro unlocks the full CompatShield Portal Dashboard with advanced features — vulnerability summary, detailed scan results, notifications, historic analysis, plugin issues overview, premium ZIP upload scanning, and multi-layer compatibility intelligence including database upgrade readiness.

**Subscribe / Upgrade to Pro:** https://www.compatshield.com/

### ✨ Key Features

* **PHP Compatibility Check** – Scan plugins for PHP compatibility.
  * $1/month license: Shows PHP compatibility results directly inside WP Plugin backend (up to PHP 8.5)
  * Pro license: Deeper breakdowns, insights, and analysis inside Portal Dashboard

* **Database Compatibility Check (NEW 🚀)** – Detect MySQL/MariaDB version and ensure WordPress 7.0 readiness.
  * Detects outdated MySQL (< 8.0) and MariaDB (< 10.6)
  * Warns if hosting environment may block WordPress updates
  * Helps prevent upgrade failures
  * Pro: Advanced insights and upgrade recommendations

* **Plugin Rescan** – Quickly rescan whenever you install or update plugins.

* **Email Notifications (Pro)** – Get notified when scans complete or risks are detected.

* **Portal Integration (Pro)** – View full detailed results in the CompatShield Portal Dashboard.

* **Vulnerability Summary (Pro)** – Basic vulnerability insights available in the Portal.

* **“No Data” Plugins Handling** – Easily identify custom/premium plugins or removed versions not available on WordPress.org.

### 🔑 Entry Plan vs Pro Plan

* **PHP Compatibility Check**  
  $1 Plan: WP Admin Results up to PHP 8.5  
  Pro Plan: Detailed compatibility insights in Portal Dashboard

* **Database Compatibility Check**  
  $1 Plan: Basic DB version detection in WP Admin  
  Pro Plan: Full upgrade readiness insights + risk analysis + recommendations

* **Vulnerability Summary**  
  $1 Plan: Not available  
  Pro Plan: Available in Portal

* **Email Notifications**  
  $1 Plan: Not available  
  Pro Plan: Available

* **Portal Dashboard**  
  $1 Plan: Not available  
  Pro Plan: Full access (compatibility + vulnerabilities + detailed summaries + site overview)

* **Custom/Premium Plugins ZIP Scanning**  
  $1 Plan: Not available  
  Pro Plan: Supported via Portal ZIP uploader

== Screenshots ==

1. The main plugin interface with scan results.  
2. Example of plugins listed after rescan.  
3. Fetching the latest results from the Portal.  
4. Viewing detailed compatibility and vulnerabilities (Portal).

== Installation ==

1. Upload `plugin-compatibility-checker` to the `/wp-content/plugins/` directory.
2. Activate the plugin through the **Plugins** menu in WordPress.
3. Subscribe inside the Portal ($1/month) and enter your license key to unlock compatibility up to PHP 8.5 and database checks.
4. (Optional) Upgrade to Pro to enable Portal Dashboard and advanced features.

== Frequently Asked Questions ==

= What happens if I don’t activate a license? =
You must subscribe to the $1/month entry plan and activate your license to see compatibility results. Without license activation, visibility will be limited. Pro unlocks dashboard analytics, notifications and vulnerability insights.

= Why is database compatibility important? =
Starting with WordPress 7.0, database requirements are stricter (MySQL 8.0+ / MariaDB 10.6+). If your hosting is outdated, your site may not receive updates.

= Will my site break if database is outdated? =
Not immediately, but your site may stop receiving future WordPress updates, which can lead to security risks.

= Why does a plugin show “No Data”? =
This usually means the plugin is either custom/premium or its version has been removed from WordPress.org.

= Do I need to rescan after adding new plugins? =
Yes, please click **Rescan** to include new plugins in the compatibility check.