<?php //All php scripts must start with this line. It acts as a marker for the interpreter $today=date("l"); //PHP internal function $topics=array("Monday"=>"php", "Tuesday"=>"html", "Wednesday"=>"css", "Thursday"=>"apache", "Friday"=>"markdown" ); //An array, special type of php variable $topic= $topics[$today];//Accessing an array, assignment array echo "Today $today we are going to learn all about $topic"; //Prints out to screen 3