Login with OTP (One Time Password) is a common functionality to make user login more secure. The One Time Password generated randomly and send to user email address or mobile to verify OTP code to complete login.
So if you’re thinking about implementing secure login with PHP using OTP, then you’re here at right place. In this tutorial, you will learn how to implement secure login in PHP with OTP code.
We will cover this tutorial in easy steps to implement secure login with OTP using PHP and MySQL. When login successful then OTP code send to email address and remain valid for one hour, after that code will be expired. The user login completed after OTP code verified. You can also create a complete User Management System with PHP & MySQL to manage everything related to users with admin panel.