Help with four tasks in PHP language

There are going to be 4 small - medium sized tasks, quite easy for someone who knows PHP. The time limit to solve them is 2 and a half hours. I will explain everything else in detail. Here is an example task: Task 1: Time table The goblins devised a plan to steal treasure from the Kobold Kingdom. There's only one problem: they don't know when will they have time to do this. Create a page which displays the daily activities for each goblin! (The life of goblins is really boring, they do the same things in the same time each day.) Before starting to code, look at and try to understand the data structure in 1/[login to view URL]! a. Display the activities in a table where the first row is the name of each goblin! (keys from the $goblins associative array.) b. The goblins count time from sunrise to sunset, divided into 8 hours. Sunrise is the start of hour 0, and the sun sets exactly at 7:59. In accordance with this, display the hours in the first column of the table from 0 to 7! c. We know the following information for each activity: when it starts (startHour) and what is it's ID (activityKey). Each acticity is one hour long. The names and difficulties of each activity can be found in the $activities array. For a given cell, if the given goblin (first row) has an activity in the given hour (first column), display the name of the activity there! d. The difficulty of each activity is measured as a real number between 0 and 1. Color every task: easier than 0.5 (0.5 included) to lightgreen between 0.5 and 0.8 to orange harder than 0.8 (0.8 included) to red If a cell has no activity in it, leave it white.