Deret Fibonacci

fibonacci.php

<?php

// 0,1,1,2,3,5,8,13

$fib = [];
foreach (range(0, 100) as $i) {

    if ($i == 0) {
        $fib[$i] = 0;
    } elseif ($i == 1) {
        $fib[$i] = 1;
    } else {
        $fib[$i] = $fib[$i - 2] + $fib[$i - 1];
    }
}

echo implode('<br>', $fib);