PHP Taskbook Level 10.1

Make a function that takes a singular English noun as a parameter and returns it in the plural.

The text with punctuation marks is given:

'aaa bbb, ccc. Xxx - eee bbb, kkk!'

Get an array of words from such text.

Given two numbers, display the process of multiplying these numbers in a column, as in school.

Given an arbitrary two-dimensional array:

[
	[11, 12, 13],
	[21, 22, 23],
	[31, 32, 33],
]

Write code that will add another row filled with random values to the array:

[
	[11, 12, 13],
	[21, 22, 23],
	[31, 32, 33],
	[41, 42, 43],
]