🗓️ PHP Task Manager with Email Reminders

A lightweight task management system built in PHP that allows users to add and manage tasks, subscribe via email for hourly task reminders, and unsubscribe anytime — all without using a database.

Features

Task Management

• Add new tasks to a shared task list
• Avoids duplicate task names (case-insensitive)
• Mark tasks as complete/incomplete
• Delete tasks
• Stores all tasks in tasks.txt (JSON format)

Email Subscription System

• Users can subscribe using their email address
• Email verification via a unique 6-digit code
• Email verification handled via verify.php
• Verified emails stored in subscribers.txt
• Unverified emails and codes stored in pending_subscriptions.txt
• Users can unsubscribe via one-click link in reminder email

Hourly Task Reminders

• CRON job executes cron.php every hour
• Sends reminder emails with pending tasks to all verified subscribers
• Each email contains:
  • List of pending tasks
  • An unsubscribe link

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Email Testing with MailHog

This project uses MailHog for email testing in a local development environment.

• MailHog captures outgoing emails sent using mail() and provides a web UI to view them.
• This allows you to test subscription verification and reminder emails without sending real messages.

How to Use:

1. Download and run MailHog:
   MailHog GitHub Repo
2. MailHog UI runs at http://localhost:8025
3. Ensure PHP is configured to send email via localhost:1025:

   ini_set('SMTP', 'localhost');
   ini_set('smtp_port', 1025);
   ini_set('sendmail_from', 'no-reply@example.com');

Setup CRON job

To set up the hourly reminder CRON job:

chmod +x setup_cron.sh

./setup_cron.sh

For Windows, use task manager or bash. Alternatively, the cron.php file can be run manually for testing.

Running the PHP Server

Start the PHP built-in server:

php -S localhost:8000