Print Fibonacci series up to n numbers e.g. 0 1 1 2 3 5 8 13 21…..n
<?php
function printFibonacciNumbers($n)
{
$f1 = 0;
$f2 = 1;
$i;
if ($n < 1)
return;
echo($f1);
echo(" ");
for ($i = 1; $i < $n; $i++)
{
echo($f2);
echo(" ");
$next = $f1 + $f2;
$f1 = $f2;
$f2 = $next;
}
}
printFibonacciNumbers(15);
?>
Output
