Exploring PHP functions and predefined functions.
Understanding PHP Object Oriented Programming and related concepts.
Learning about PHP configuration and max_execution_time.
Understanding PHP sessions and cookies for state management.
Exploring PHP exception handling.
Understanding PHP generators and namespaces.
Learning about PHP database connectivity with MySQL.
Understanding form handling with PHP and MySQL.
Understanding file uploads and downloads in PHP.
Exploring handling of CSV files with fgetcsv and fputcsv.