Create the Fibonacci Sequence in PHP

fibonacci.php

<?php
 function fibonacci($n) {
    $current = 1;
    $previous = 0;
    for ($i = 0; $i < $n; $i++) {
        yield $current;

        $temporary = $current;
        $current = $previous + $current;
        $previous = $temporary;
    }
}
$fibonacci_sequence = fibonacci(12);
foreach ($fibonacci_sequence as $fib_seq) {
    echo " " . $fib_seq;
}
// results
// 1 1 2 3 5 8 13 21 34 55 89 144

license.txt

Copyright 2018 Hendrik Eduard Kuiper

Permission is hereby granted, free of charge, to any person obtaining a 
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The above copyright notice and this permission notice shall be included in 
all copies or substantial portions of the Software.

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