Question

Please code the arrays. This is in PHP/HTML

Perform some calculations:

1. $ages = [24, 12, 10, 17, 23, 29, 35, 32, 30, 22] Using a FOR loop, calculate the sum and average of these numbers, then print them. Please provide legible output.

2. If I change the array to $ages = [1 => 24, 12, 10, 17, 23, 29, 35, 32, 30, 22] How will the program change? Re-run the program and provide output

3. Assume that the above array is an associative array as follows:

$ages = ['Sam' => 24, 'Tina' => 12, 'Liz' => 10, 'Tom' => 17, 'Dave' => 23, 'Sandra' => 29, 'Kris' => 35, 'Mike' => 32, 'Daja' => 30, 'Rajan' => 22]

Write a program to print each name and its associated age on a single line; i.e., Sam => 24 . . . and so on

Answer 1

Answer 1:

PHP code:

<?php

$sum = 0;

$avg = 0;

$ages = [24, 12, 10, 17, 23, 29, 35, 32, 30, 22];

for ($i = 0; $i < count($ages); $i++){

$sum += $ages[$i];

}

$avg = $sum/count($ages);

echo "Sum = $sum\n";

echo "Average = $avg\n";

Output:

Answer 2:

The indexing of the array will now start from index 1 instead of index 0. Therefore, for loop should now be iterated over 1 to 10.

Output when program is run without modifying the FOR loop:

Modified program:

<?php

$sum = 0;

$avg = 0;

$ages = [1 => 24, 12, 10, 17, 23, 29, 35, 32, 30, 22];

for ($i = 1; $i <= count($ages); $i++){

$sum += $ages[$i];

}

$avg = $sum/count($ages);

echo "Sum = $sum\n";

echo "Average = $avg\n";

Output:

Answer 3:

PHP code:

<?php

$ages = ['Sam' => 24, 'Tina' => 12, 'Liz' => 10, 'Tom' => 17, 'Dave' => 23, 'Sandra' => 29, 'Kris' => 35, 'Mike' => 32, 'Daja' => 30, 'Rajan' => 22];

foreach ($ages as $name => $age){

echo "$name => $age\n";

}

Output:

FOR ANY HELP JUST DROP A COMMENT