PHP Email Verification

PHP

The Core of Verifying Email

Here's the fundamental code to make this app, where the email verification link gets send using the built-in PHP mailing system:

As of 2025 at least, its better to use PHPMailer rather than PHP's mailing system, because its unreliable and doesn't have custom settings - developers have stated that its unusable, especially when your website is online, because it doesn't use SMTP auth and Google, Outlook rejects it.

Complete Email Verification App

Here's a ready-built source code to start using this email verification system on your site. It uses PHPMailer, which is much more secure than PHP's mail() function. If you don't have PHPMailer yet, download it here (GitHub's version) and begin implementing the application:

Feel free to replace MySQLi with PDO if you want more security. Here the values are binded as strings, so injections from threats wont come in.