--TEST--
Multiple yield from on a same Generator instance
--FILE--
<?php

function gen($a = 0) {
    yield 1 + $a;
    if ($a < 1) {
        var_dump(yield from gen($a + 1));
    }
    yield 3 + $a;
    return 5 + $a;
}

function bar($gen) {
    var_dump(yield from $gen);
}

/* Twice a Generator from bar() using yield from on $gen */
$gen = gen();
$gens[] = bar($gen);
$gens[] = bar($gen);

do {
    foreach ($gens as $g) {
        var_dump($g->current());
        $g->next();
    }
} while($gens[0]->valid());
var_dump($gens[1]->valid());

?>
--EXPECT--
int(1)
int(2)
int(4)
int(6)
int(3)
int(5)
int(3)
int(5)
NULL
bool(false)