PHP or Hypertext Preprocessor is a widely-used open source Programming/Scripting Language that is commonly used in web development. It is mainly focused on server-side scripting. PHP can collect data, manage files on the server, generate dynamic page content, manage data in your database, and more.
If you are looking for Student Attendance Monitoring System with Barcode using PHP then you are at the right place. This is a full source code. It has a three-side to logging on the admin side to view and manage the data and the teacher side to check the attendance of the students, Students side entering their Barcode Number given by their teachers to have their attendance and it will see a record on the teacher side.