=== Tohidul Certificate Verification System ===
Contributors: tohidulbhuiyan
Donate link: https://buymeacoffee.com/tohidulbhuiyan
Tags: certificate, verification, student, education,result
Requires at least: 5.0
Tested up to: 6.9
Stable tag: 2.1.0
Requires PHP: 7.4
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

A complete and modern certificate verification system for educational institutes with import/export, and backup features.

== Description ==

**Tohidul Certificate Verification System** is a powerful yet easy-to-use WordPress plugin designed for educational institutions, training centers, and organizations to verify certificates online. 

With this plugin, you can easily add student certificate data, manage them from a modern admin dashboard, and allow anyone to verify certificates using a registration or certificate number. It comes with a professional print-ready certificate template.

### 🚀 Key Features

* **Modern Admin Dashboard:** Clean and responsive interface to manage all certificates.
* **Bulk Actions:** Delete multiple certificates at once securely.
* **Frontend Verification:** Simple shortcode `[tcvs_verification]` to display the search form.
* **Print Support:** Students can print their verified certificates directly from the website without layout issues.
* **Import/Export:** Easily import bulk student data from CSV or export data for backup.
* **Backup & Restore:** Create full JSON backups of your database and restore them anytime.
* **Customizable Settings:** Upload your Institute Logo, Authorized Signature, and Verified Seal directly from the settings panel.
* **Secure:** Built with WordPress standard security practices (Nonce verification, Sanitization).

== Installation ==

1.  Upload the plugin files to the `/wp-content/plugins/tohidul-certificate-verification-system` directory, or install the plugin through the WordPress plugins screen directly.
2.  Activate the plugin through the 'Plugins' screen in WordPress.
3.  Use the `[tcvs_verification]` shortcode on any page to display the verification form.
4.  Go to **Certificate Verification > Institute Settings** to configure your institute details.

== Frequently Asked Questions ==

= How do I display the verification form? =
Simply create a new page or edit an existing one and add the shortcode `[tcvs_verification]`.

= Can I import students from Excel? =
Yes! Save your Excel file as a **CSV** format and use the **Import/Export** menu to upload student data in bulk.

= How do I backup my data? =
Go to the **Backup/Restore** menu. You can download a JSON file containing all certificate data.

== Screenshots ==

1.  **Admin Dashboard** – A clean overview of all certificates with search and filters.
2.  **Add New Certificate** – Easy-to-use form for adding student details.
3.  **Frontend Search** – The verification form for students.
4.  **Certificate View** – The verified certificate result with print option.
5.  **Settings Page** – Customize institute info, logo, and signatures.

== Changelog ==

= 2.1.0 =
* Security: Implemented strict Nonce verification for all admin actions.
* Update: Changed plugin prefix to `tcvs` to avoid conflicts with other plugins.
* Update: Shortcode changed to `[tcvs_verification]`.
* Improved: Admin dashboard UI and Bulk Action logic.
* Fixed: CSV Import/Export escaping issues.

= 2.0.5 =
* Fixed: Issue Date display bug in admin dashboard and frontend.
* Fixed: Print popup double-opening issue.
* Improved: Admin dashboard UI with modern design.
* Added: Import/Export menu in admin dashboard.

= 2.0.0 =
* Major update with new database structure.
* Added Backup and Restore functionality.

= 1.0.0 =
* Initial release.

== Upgrade Notice ==

= 2.1.0 =
Major security update. The shortcode has been updated to `[tcvs_verification]`. Please update your pages accordingly after upgrading.