[Resolved] pointers in php ?

I just want to know what's the meaning of that & in this function: (&$array)

function my_array_shift(&$array){
  reset($array);
  $temp = each($array);
  unset($array[$temp['key']]);
  return $temp['value'];
}

$name =& $root->addChild("name", "Peter Parker aka Spiderman");

thanks in advance 🙂

thanks 😃