PHP Lecture 5 - Date time, Include, session

This document provides an overview of key PHP concepts including date and time functions, debugging with var_dump(), includes and requires to include files, and sessions to store and retrieve data across multiple pages. Specifically, it demonstrates how to output the current date and time in a specified format using date(), debug variables with var_dump(), include and require other files, and use sessions to store and retrieve values with session_start(), $_SESSION, and session_destroy().