Question

How to find sum of the first N even numbers in PHP

Answer 1

$N = 5;

// The sum of the first N even numbers is N * (N + 1)
$sum_even = $N * ($N + 1);

echo "The sum of the first {$N} even numbers is: {$sum_even}\n";

// 2 + 4 + 6 + 8 + 10 = 30


/*
run:

The sum of the first 5 even numbers is: 30

*/

 

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