Online PHP editor | refs for am78e

@ 2015-11-12T23:20:22Z

<?php

function g1() {
  yield 1;
  yield 2;
}

function g2($g1) {
  yield 0;
  yield from $g1;
  echo "!\n";
  yield 3;
}

$g1 = g1();
$g2 = g2($g1);
$g2->next();

while ($g2->valid()) {
  var_dump($g2->current());
  $g1->next();
}