How can nested loops be used to sum values in an array in a staggered manner in PHP?

To sum values in an array in a staggered manner using nested loops in PHP, you can iterate over the array with two nested loops. The outer loop will iterate over every other element in the array, while the inner loop will sum the values. This approach allows you to skip elements in the array and sum them in a staggered manner. 

$numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
$sum = 0;

for ($i = 0; $i < count($numbers); $i += 2) {
    for ($j = $i; $j < count($numbers); $j += 2) {
        $sum += $numbers[$j];
    }
}

echo $sum; // Output: 30 (1 + 3 + 5 + 7 + 9)

Keywords

nested loops array staggered manner sum values PHP

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