mathiasverraes · November 14, 2017 09:46 · mathiasverraes · Nov 14, 2017 · mathiasverraes · Nov 14, 2017
diff --git a/fib.php b/fib.php
 <?php
 foreach (fib() as $x) echo "$x\n";

 function fib () {
  yield 0; yield 1;
  $f = fib(); $g = fib(); 
  $g->next();
  while (true) {
    yield $f->current() + $g->current();
    $f->next(); $g->next();
  }
 }
	<?php
	foreach (fib() as $x) echo "$x\n";

	function fib () {
	yield 0; yield 1;
	$f = fib(); $g = fib();
	$g->next();
	while (true) {
	yield $f->current() + $g->current();
	$f->next(); $g->next();
	}
	}