The OTP (One-Time Password) verification system implemented in index.php uses PHPMailer for sending emails and dotenv for environment variable management. Here's a brief overview of how the system works:
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Environment Setup:
- Use Composer to install PHPMailer and PHP dotenv.
- Create a
.env.localfile to securely store sensitive information such as email credentials.
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Database Connection:
- Establish a connection to a MySQL database to store and manage OTPs associated with user emails.
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Sending OTP:
- When a user submits their email, an OTP is generated and stored in the database along with the current timestamp.
- An email is sent to the user with the OTP using PHPMailer, configured to use Gmail's SMTP server.
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Verifying OTP:
- The user submits the received OTP through the web interface.
- The OTP is verified against the stored value in the database. It checks if the OTP is correct and has not expired (valid for 10 minutes).
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Frontend:
- HTML forms are provided for the user to input their email and OTP.
- jQuery is used to handle form submissions and communicate with the server via AJAX.
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Install Dependencies:
composer require phpmailer/phpmailer composer require vlucas/phpdotenv
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Create .env.local File:
- Place it in the root directory of your project.
- Add the following content, replacing placeholders with your actual email credentials:
[email protected] MAIL_PASSWORD=your_password [email protected] MAIL_FROM_NAME=Your Name
This setup ensures that the OTP verification process is secure and efficient, leveraging modern PHP libraries and practices.