Iterator::key

michaelgranados at gmail dot com (2013-06-26 15:46:26)

Since PHP 5.5.X foreach can accept non scalar items. So the return can be anything ;)

Lszl Lajos Jnszky (2012-03-14 00:34:43)

And converts everything to integer except string, so in php the post process could be:
public function key() {
$yourKey = $this->createYourKey();
if (is_object($yourKey) || is_array($yourKey))
throw new Exception('Array and Object not allowed.');
elseif (is_string($yourKey))
return $yourKey;
else
return (int) $yourKey;
}

Anonymous (2011-05-26 15:40:46)

Be careful, the returned value must be a scalar! Took me a while to figure out why foreach() doesn't work on my class that handles arrays with object keys...