Generator Scratchpad

gen.php

<?php

function gen($arg1) {
	var_dump($b = yield $arg1 + 1);
	var_dump($d = yield $b + 2);
	$ret = $d + 2;
	var_dump($ret);
	return $ret;
}

var_dump($g = gen(1));
var_dump($a = $g->current());
var_dump($c = $g->send($a + 1));
var_dump($e = $g->send($c + 1));
var_dump($g->getReturn());

yieldFrom.php

<?php

function innerGen()
{
	yield 2;
	yield 3;
}

function outerGen()
{
	yield 1;
	yield from innerGen();
}

foreach (outerGen() as $yielded) {
	var_dump($yielded);
}