PHP square instructions not Algebra

Question

I am creating an array named "fifty" with 50 elements.

Instruction #1:Initialize the array so that the first 25 elements are equal to the square of the index/key variable.

When squaring we are raising a base or number to some power so in PHP
we need some function like this:

<?php
    print pow(10,2); // Squared raised to the 2nd power = 100 
    print pow(10,3); // Cubed raised to the 3rd power = 1000
    print pow(10,4); // 10000
    print pow(-10, 4); // 10000
?>

Solved....

Answer 1

Square is a common mathematical term meaning "to the power of two"

For the second last 25 values they want the value in the array to be equal to the key * 3. So if the key was 145, the value would be 435.

Also, I weep for the education system that's teaching someone to program before teaching them reading comprehension.

Answer 2

This is very basic stuff. It's early in the morning where I'm at right now so nothing else to do. Here the answer to:

Instruction #1:Initialize the array so that the first 25 elements are equal to the square of the index/key variable.

<?php
$myarray = array();
for($i=0; $i<25; $i++) {
  $myarray[] = $i * $i;  // squaring
}

var_dump($myarray);  // output to screen
?>