<?php
// fib.php
function fib($n)
{
$cur = 1;
$prev = 0;
for ($i = 0; $i < $n; $i++)
{
yield $cur;
$temp = $cur;
$cur = $prev + $cur;
$prev = $temp;
}
}
$fibs = fib(19);
foreach ($fibs as $fib) {
echo " " . $fib;
}
# php fib.php
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