Topics and learning objectives!

$1.$ Functions

$2.$ Dates and timestamps

How to submit!

Create a new directory called $`$lab$03`$ in your GBLearn account at $`$~$/$public$\_$html$/$labs$/$lab$03/`$ and

upload your task files to this folder.

Task $1$ Description

The aim of this task is to create a function that does some very basic $$encryption$$ on a string.

$1.$ Create a regular function called encrypt that takes two parameters.

The first parameter should be a string called $to$\_$encrypt,

and the second should be an integer called $prime$\_$num.

$2.$ In the function, randomly generate a number between $2$ and $8.$

Save this random number in a variable called $rand$\_$num.

Multiply $prime$\_$num with $rand$\_$num, and save the value into a new variable called $cipher.

i$.$ Hint: use the rand$\_$int$(...)$ function to generate a random number.

$3.$ Create a new variable called $encrypted, by concatenating $cipher to the beginning

and the end of $to$\_$encrypt. Return $encrypted from the function.

$4.$ Call the encrypt function with arguments of your choice.

Echo the returned value of the function, surrounded by tags.

ii$.$ Otherwise, echo "You still have time!" within tags.

iii. Hint: you can temporarily change the $due$\_$date variable to yesterday$$s date,

to make sure that the late submission message shows as expected.

$4.$ Test your work and ensure the following code is included at the bottom of any uploaded files

echo $"$