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PHP program to find the sum of cubes of the first n natural numbers
To find the sum of cubes of the first n natural numbers, the code is as follows −
Example
<?php
function sum_of_cubes($val)
{
$init_sum = 0;
for ($x = 1; $x <= $val; $x++)
$init_sum += $x * $x * $x;
return $init_sum;
}
print_r("The sum of cubes of first 8 natural numbers is ");
echo sum_of_cubes(8);
?>Output
The sum of cubes of first 8 natural numbers is 1296
A function named ‘sum_of_cubes’ is defined that initializes a sum to 0. Every natural number is multiplied by itself thrice (cube) and added to the initial sum. The limit is the value that is passed as a parameter to the function. The limit is defined outside the function and the function is called. Relevant output is displayed on the console.
Updated on: 02-Jul-2020
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